diff --git a/doc/source/conf.py b/doc/source/conf.py
index 56f77f667df88..0b826ccfe9e97 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -77,19 +77,8 @@
               'contributors',  # custom pandas extension
               ]
 
-try:
-    import sphinxcontrib.spelling  # noqa
-except ImportError as err:
-    logger.warn(('sphinxcontrib.spelling failed to import with error "{}". '
-                '`spellcheck` command is not available.'.format(err)))
-else:
-    extensions.append('sphinxcontrib.spelling')
-
 exclude_patterns = ['**.ipynb_checkpoints']
 
-spelling_word_list_filename = ['spelling_wordlist.txt', 'names_wordlist.txt']
-spelling_ignore_pypi_package_names = True
-
 with open("index.rst") as f:
     index_rst_lines = f.readlines()
 
diff --git a/doc/source/names_wordlist.txt b/doc/source/names_wordlist.txt
deleted file mode 100644
index 032883b7febf6..0000000000000
--- a/doc/source/names_wordlist.txt
+++ /dev/null
@@ -1,1652 +0,0 @@
-Critchley
-Villanova
-del
-Hohmann
-Rychyk
-Buchkovsky
-Lenail
-Schade
-datetimeindex
-Aly
-Sivji
-Költringer
-Bui
-András
-Novoszáth
-Anh
-Anil
-Pallekonda
-Pitrou
-Linde
-Quinonez
-Varshokar
-Artem
-Bogachev
-Avi
-Azeez
-Oluwafemi
-Auffarth
-Thiel
-Bhavesh
-Poddar
-Haffner
-Naul
-Guinta
-Moreira
-García
-Márquez
-Cheuk
-Chitrank
-Dixit
-Catalfo
-Mazzullo
-Chwala
-Cihan
-Ceyhan
-Brunner
-Riemenschneider
-Dixey
-Garrido
-Sakuma
-Hirschfeld
-Adrián
-Cañones
-Castellano
-Arcos
-Hoese
-Stansby
-Kamau
-Niederhut
-Dror
-Atariah
-Chea
-Kisslinger
-Retkowski
-Sar
-Maeztu
-Gianpaolo
-Macario
-Giftlin
-Rajaiah
-Olimpio
-Gjelt
-Inggs
-Grzegorz
-Konefał
-Guilherme
-Beltramini
-Pitkeathly
-Mashkoor
-Ferchland
-Haochen
-Hissashi
-Sharaf
-Ignasi
-Fosch
-Alves
-Shelvinskyi
-Imanflow
-Ingolf
-Saeta
-Pérez
-Koevska
-Jakub
-Nowacki
-Werkmann
-Zoutkamp
-Bandlow
-Jaume
-Bonet
-Alammar
-Reback
-Jing
-Qiang
-Goh
-Miralles
-Nothman
-Joeun
-Metz
-Mease
-Schulze
-Jongwony
-Jordi
-Contestí
-Joris
-Bossche
-José
-Fonseca
-Jovixe
-Jörg
-Döpfert
-Ittoku
-Surta
-Kuhl
-Krzysztof
-Chomski
-Ksenia
-Ksenia
-Bobrova
-Kunal
-Gosar
-Kerstein
-Laksh
-Arora
-Geffert
-Licht
-Takeuchi
-Liudmila
-Villalba
-Manan
-Singh
-Manraj
-Singh
-Hemken
-Bibiloni
-Corchero
-Woodbridge
-Journois
-Gallo
-Heikkilä
-Braymer
-Maybeno
-Rocklin
-Roeschke
-Bussonnier
-Mikhaylov
-Veksler
-Roos
-Maximiliano
-Greco
-Penkov
-Röttger
-Selik
-Waskom
-Mie
-Kutzma
-Mitar
-Negus
-Münst
-Mortada
-Mehyar
-Braithwaite
-Chmura
-Karagiannakis
-Nipun
-Sadvilkar
-Martensen
-Noémi
-Éltető
-Bilodeau
-Ondrej
-Kokes
-Onno
-Ganssle
-Mannino
-Reidy
-Oliveira
-Hoffmann
-Ngo
-Battiston
-Pranav
-Suri
-Priyanka
-Ojha
-Pulkit
-Maloo
-Magliocchetti
-Ridhwan
-Luthra
-Kiplang'at
-Rohan
-Pandit
-Rok
-Mihevc
-Rouz
-Azari
-Ryszard
-Kaleta
-Samir
-Musali
-Sinayoko
-Sangwoong
-Yoon
-Sharad
-Vijalapuram
-Shubham
-Chaudhary
-Sietse
-Brouwer
-Delprete
-Cianciulli
-Childs
-Stijn
-Hoey
-Talitha
-Pumar
-Tarbo
-Fukazawa
-Petrou
-Caswell
-Hoffmann
-Swast
-Augspurger
-Tulio
-Casagrande
-Tushar
-Tushar
-Mittal
-Upkar
-Lidder
-Vinícius
-Figueiredo
-Vipin
-WBare
-Wenhuan
-Ayd
-Xbar
-Yaroslav
-Halchenko
-Yee
-Mey
-Yeongseon
-Choe
-Yian
-Yimeng
-Zhang
-Zihao
-Zhao
-adatasetaday
-akielbowicz
-akosel
-alinde
-amuta
-bolkedebruin
-cbertinato
-cgohlke
-charlie
-chris
-csfarkas
-dajcs
-deflatSOCO
-derestle
-htwg
-discort
-dmanikowski
-donK
-elrubio
-fivemok
-fjdiod
-fjetter
-froessler
-gabrielclow
-gfyoung
-ghasemnaddaf
-vetinari
-himanshu
-awasthi
-ignamv
-jayfoad
-jazzmuesli
-jbrockmendel
-jjames
-joaoavf
-joders
-jschendel
-juan
-huguet
-luzpaz
-mdeboc
-miguelmorin
-miker
-miquelcamprodon
-orereta
-ottiP
-peterpanmj
-rafarui
-raph
-readyready
-rmihael
-samghelms
-scriptomation
-sfoo
-stefansimik
-stonebig
-tmnhat
-tomneep
-tv
-verakai
-xpvpc
-zhanghui
-API
-Mazzullo
-Riemenschneider
-Hirschfeld
-Stansby
-Dror
-Atariah
-Kisslinger
-Ingolf
-Werkmann
-Reback
-Joris
-Bossche
-Jörg
-Döpfert
-Kuhl
-Krzysztof
-Chomski
-Licht
-Takeuchi
-Manraj
-Singh
-Braymer
-Waskom
-Mie
-Hoffmann
-Sietse
-Brouwer
-Swast
-Augspurger
-Ayd
-Yee
-Mey
-bolkedebruin
-cgohlke
-derestle
-htwg
-fjdiod
-gabrielclow
-gfyoung
-ghasemnaddaf
-jbrockmendel
-jschendel
-miker
-pypy
-Gleave
-Liaw
-Velasco
-Yee
-Marchenko
-Amol
-Winkler
-亮
-André
-Jonasson
-Sweger
-Berkay
-Haffner
-Tu
-Chankey
-Pathak
-Billington
-Filo
-Gorgolewski
-Mazzullo
-Prinoth
-Stade
-Schuldt
-Moehl
-Himmelstein
-Willmer
-Niederhut
-Wieser
-Fredriksen
-Kint
-Giftlin
-Giftlin
-Rajaiah
-Guilherme
-Beltramini
-Guillem
-Borrell
-Hanmin
-Qin
-Makait
-Hussain
-Tamboli
-Miholic
-Novotný
-Helie
-Schiratti
-Deschenes
-Knupp
-Reback
-Tratner
-Nothman
-Crall
-Mease
-Helmus
-Joris
-Bossche
-Bochi
-Kuhlmann
-Brabandere
-Keeton
-Keiron
-Pizzey
-Kernc
-Licht
-Takeuchi
-Kushner
-Jelloul
-Makarov
-Malgorzata
-Turzanska
-Sy
-Roeschke
-Picus
-Mehmet
-Akmanalp
-Gasvoda
-Penkov
-Eubank
-Shteynbuk
-Tillmann
-Pankaj
-Pandey
-Luo
-O'Melveny
-Reidy
-Quackenbush
-Yanovich
-Haessig
-Battiston
-Pradyumna
-Reddy
-Chinthala
-Prasanjit
-Prakash
-Sangwoong
-Yoon
-Sudeep
-Telt
-Caswell
-Swast
-Augspurger
-Tuan
-Utkarsh
-Upadhyay
-Vivek
-Aiyong
-WBare
-Yi
-Liu
-Yosuke
-Nakabayashi
-aaron
-abarber
-gh
-aernlund
-agustín
-méndez
-andymaheshw
-aviolov
-bpraggastis
-cbertinato
-cclauss
-chernrick
-chris
-dkamm
-dwkenefick
-faic
-fding
-gfyoung
-guygoldberg
-hhuuggoo
-huashuai
-ian
-iulia
-jaredsnyder
-jbrockmendel
-jdeschenes
-jebob
-jschendel
-keitakurita
-kernc
-kiwirob
-kjford
-linebp
-lloydkirk
-louispotok
-majiang
-manikbhandari
-matthiashuschle
-mattip
-maxwasserman
-mjlove
-nmartensen
-parchd
-philipphanemann
-rdk
-reidy
-ri
-ruiann
-rvernica
-weigand
-scotthavard
-skwbc
-tobycheese
-tsdlovell
-ysau
-zzgao
-cov
-abaldenko
-adrian
-stepien
-Saxena
-Akash
-Tandon
-Aleksey
-Bilogur
-alexandercbooth
-Amol
-Kahat
-Winkler
-Kittredge
-Anthonios
-Partheniou
-Arco
-Ashish
-Singal
-atbd
-bastewart
-Baurzhan
-Muftakhidinov
-Kandel
-bmagnusson
-carlosdanielcsantos
-Souza
-chaimdemulder
-chris
-Aycock
-Gohlke
-Paulik
-Warth
-Brunner
-Himmelstein
-Willmer
-Krych
-dickreuter
-Dimitris
-Spathis
-discort
-Dmitry
-Suria
-Wijaya
-Stanczak
-dr
-leo
-dubourg
-dwkenefick
-Andrade
-Ennemoser
-Francesc
-Alted
-Fumito
-Hamamura
-funnycrab
-gfyoung
-Ferroni
-goldenbull
-Jeffries
-Guilherme
-Beltramini
-Guilherme
-Samora
-Hao
-Harshit
-Patni
-Ilya
-Schurov
-Iván
-Vallés
-Pérez
-Leng
-Jaehoon
-Hwang
-Goppert
-Santucci
-Reback
-Crist
-Jevnik
-Nothman
-Zwinck
-jojomdt
-Whitmore
-Mease
-Mease
-Joost
-Kranendonk
-Joris
-Bossche
-Bradt
-Santander
-Julien
-Marrec
-Solinsky
-Kacawi
-Kamal
-Kamalaldin
-Shedden
-Kernc
-Keshav
-Ramaswamy
-Ren
-linebp
-Pedersen
-Cestaro
-Scarabello
-Lukasz
-paramstyle
-Lababidi
-Unserialized
-manu
-manuels
-Roeschke
-mattip
-Picus
-Roeschke
-maxalbert
-Roos
-mcocdawc
-Lamparski
-Michiel
-Mikolaj
-Chwalisz
-Miroslav
-Šedivý
-Mykola
-Golubyev
-Rud
-Halen
-Chmura
-nuffe
-Pankaj
-Pandey
-paul
-mannino
-Pawel
-Kordek
-pbreach
-Csizsek
-Petio
-Petrov
-Ruffwind
-Battiston
-Chromiec
-Prasanjit
-Prakash
-Forgione
-Rouz
-Azari
-Sahil
-Dua
-sakkemo
-Sami
-Salonen
-Sarma
-Tangirala
-scls
-Gsänger
-Sébastien
-Menten
-Heide
-Shyam
-Saladi
-sinhrks
-Sinhrks
-Rauch
-stijnvanhoey
-Adiseshan
-themrmax
-Thiago
-Serafim
-Thoralf
-Thrasibule
-Gustafsson
-Augspurger
-tomrod
-Shen
-tzinckgraf
-Uwe
-wandersoncferreira
-watercrossing
-wcwagner
-Wiktor
-Tomczak
-xgdgsc
-Yaroslav
-Halchenko
-Yimeng
-Zhang
-yui
-knk
-Saxena
-Kandel
-Aycock
-Himmelstein
-Willmer
-gfyoung
-hesham
-shabana
-Reback
-Jevnik
-Joris
-Bossche
-Santander
-Shedden
-Keshav
-Ramaswamy
-Scarabello
-Picus
-Roeschke
-Roos
-Mykola
-Golubyev
-Halen
-Pawel
-Kordek
-Battiston
-sinhrks
-Adiseshan
-Augspurger
-wandersoncferreira
-Yaroslav
-Halchenko
-Chainz
-Anthonios
-Partheniou
-Arash
-Rouhani
-Kandel
-chris
-Warth
-Krych
-dubourg
-gfyoung
-Iván
-Vallés
-Pérez
-Reback
-Jevnik
-Mease
-Joris
-Bossche
-Keshav
-Ramaswamy
-Ren
-mattrijk
-paul
-mannino
-Chromiec
-Sinhrks
-Thiago
-Serafim
-adneu
-agraboso
-Alekseyev
-Vig
-Riddell
-Amol
-Amol
-Agrawal
-Anthonios
-Partheniou
-babakkeyvani
-Kandel
-Baxley
-Camilo
-Cota
-chris
-Grinolds
-Hudon
-Aycock
-Warth
-cmazzullo
-cr
-Siladji
-Drewrey
-Lupton
-dsm
-Blancas
-Marsden
-Marczinowski
-O'Donovan
-Gábor
-Lipták
-Geraint
-gfyoung
-Ferroni
-Haleemur
-harshul
-Hassan
-Shamim
-iamsimha
-Iulius
-Nazarov
-jackieleng
-Reback
-Crist
-Jevnik
-Liekezer
-Zwinck
-Erenrich
-Joris
-Bossche
-Howes
-Brandys
-Kamil
-Sindi
-Ka
-Wo
-Shedden
-Kernc
-Brucher
-Roos
-Scherer
-Mortada
-Mehyar
-mpuels
-Haseeb
-Tariq
-Bonnotte
-Virtanen
-Mestemaker
-Pawel
-Kordek
-Battiston
-pijucha
-Jucha
-priyankjain
-Nimmi
-Gieseke
-Keyes
-Sahil
-Dua
-Sanjiv
-Lobo
-Sašo
-Stanovnik
-Heide
-sinhrks
-Sinhrks
-Kappel
-Choi
-Sudarshan
-Konge
-Caswell
-Augspurger
-Uwe
-Hoffmann
-wcwagner
-Xiang
-Zhang
-Yadunandan
-Yaroslav
-Halchenko
-YG
-Riku
-Yuichiro
-Kaneko
-yui
-knk
-zhangjinjie
-znmean
-颜发才
-Yan
-Facai
-Fiore
-Gartland
-Bastiaan
-Benoît
-Vinot
-Fustin
-Freitas
-Ter
-Livschitz
-Gábor
-Lipták
-Hassan
-Kibirige
-Iblis
-Saeta
-Pérez
-Wolosonovich
-Reback
-Jevnik
-Joris
-Bossche
-Storck
-Ka
-Wo
-Shedden
-Kieran
-O'Mahony
-Lababidi
-Maoyuan
-Liu
-Wittmann
-MaxU
-Roos
-Droettboom
-Eubank
-Bonnotte
-Virtanen
-Battiston
-Prabhjot
-Singh
-Augspurger
-Aiyong
-Winand
-Xbar
-Yan
-Facai
-adneu
-ajenkins
-cargometrics
-behzad
-nouri
-chinskiy
-gfyoung
-jeps
-jonaslb
-kotrfa
-nileracecrew
-onesandzeroes
-sinhrks
-tsdlovell
-Alekseyev
-Rosenfeld
-Anthonios
-Partheniou
-Sipos
-Carroux
-Aycock
-Scanlin
-Da
-Dorozhko
-O'Donovan
-Cleary
-Gianluca
-Jeffries
-Horel
-Schwabacher
-Deschenes
-Reback
-Jevnik
-Fremlin
-Hoersch
-Joris
-Bossche
-Joris
-Vankerschaver
-Ka
-Wo
-Keming
-Zhang
-Shedden
-Farrugia
-Lurie
-Roos
-Mayank
-Asthana
-Mortada
-Mehyar
-Moussa
-Taifi
-Navreet
-Bonnotte
-Reiners
-Gura
-Battiston
-Carnevale
-Rinoc
-Rishipuri
-Sangmin
-Lasley
-Sereger
-Seabold
-Thierry
-Moisan
-Caswell
-Augspurger
-Hauck
-Varun
-Yoong
-Kang
-Lim
-Yoshiki
-Vázquez
-Baeza
-Joong
-Younggun
-Yuval
-Langer
-argunov
-behzad
-nouri
-boombard
-brian
-pantano
-chromy
-daniel
-dgram
-gfyoung
-hcontrast
-jfoo
-kaustuv
-deolal
-llllllllll
-ranarag
-rockg
-scls
-seales
-sinhrks
-srib
-surveymedia
-tworec
-Drozd
-Anthonios
-Partheniou
-Berendt
-Piersall
-Hamed
-Saljooghinejad
-Iblis
-Deschenes
-Reback
-Callin
-Joris
-Bossche
-Ka
-Wo
-Loïc
-Séguin
-Luo
-Yicheng
-Magnus
-Jöud
-Leonhardt
-Roos
-Bonnotte
-Pastafarianist
-Chong
-Schaf
-Philipp
-deCarvalho
-Khomenko
-Rémy
-Léone
-Thierry
-Moisan
-Augspurger
-Varun
-Hoffmann
-Winterflower
-Younggun
-ajcr
-azuranski
-behzad
-nouri
-cel
-emilydolson
-hironow
-lexual
-llllllllll
-rockg
-silentquasar
-sinhrks
-taeold
-unparseable
-Rothberg
-Bedini
-Rosenfeld
-Anthonios
-Partheniou
-Artemy
-Kolchinsky
-Willers
-Gohlke
-Clearfield
-Ringwalt
-Cottrell
-Gagne
-Schettino
-Panfilov
-Araujo
-Gianluca
-Poulin
-Nisar
-Henriksen
-Hoegen
-Jaidev
-Deshpande
-Swails
-Reback
-Buyl
-Joris
-Bossche
-Joris
-Vankerschaver
-Julien
-Danjou
-Ka
-Wo
-Kehoe
-Jordahl
-Shedden
-Buitinck
-Gambogi
-Savoie
-Roos
-D'Agostino
-Mortada
-Mehyar
-Eubank
-Nipun
-Batra
-Ondřej
-Čertík
-Pratap
-Vardhan
-Rafal
-Skolasinski
-Rinoc
-Gieseke
-Safia
-Abdalla
-Saumitra
-Shahapure
-Pölsterl
-Rubbert
-Sinhrks
-Siu
-Kwan
-Seabold
-Carrucciu
-Hoyer
-Pascoe
-Santegoeds
-Grainger
-Tjerk
-Santegoeds
-Augspurger
-Winterflower
-Yaroslav
-Halchenko
-agijsberts
-ajcr
-behzad
-nouri
-cel
-cyrusmaher
-davidovitch
-ganego
-jreback
-juricast
-larvian
-maximilianr
-msund
-rekcahpassyla
-robertzk
-scls
-seth
-sinhrks
-springcoil
-terrytangyuan
-tzinckgraf
-Rosenfeld
-Artemy
-Kolchinsky
-Willers
-Christer
-der
-Meeren
-Hudon
-Lasiman
-Brundu
-Gaëtan
-Menten
-Hiebert
-Reback
-Joris
-Bossche
-Ka
-Wo
-Mortada
-Mehyar
-Grainger
-Ajamian
-Augspurger
-Yoshiki
-Vázquez
-Baeza
-Younggun
-austinc
-behzad
-nouri
-jreback
-lexual
-rekcahpassyla
-scls
-sinhrks
-Artemy
-Kolchinsky
-Gilmer
-Grinolds
-Birken
-Hirschfeld
-Dunné
-Hatem
-Nassrat
-Sperr
-Herter
-Blackburne
-Reback
-Crist
-Abernot
-Joris
-Bossche
-Shedden
-Razoumov
-Riel
-Mortada
-Mehyar
-Eubank
-Grisel
-Battiston
-Hyunjin
-Zhang
-Hoyer
-Tiago
-Antao
-Ajamian
-Augspurger
-Tomaz
-Berisa
-Shirgur
-Filimonov
-Hogman
-Yasin
-Younggun
-behzad
-nouri
-dsm
-floydsoft
-gfr
-jnmclarty
-jreback
-ksanghai
-lucas
-mschmohl
-ptype
-rockg
-scls
-sinhrks
-Toth
-Amici
-Artemy
-Kolchinsky
-Ashwini
-Chaudhary
-Letson
-Chau
-Hoang
-Christer
-der
-Meeren
-Cottrell
-Ehsan
-Azarnasab
-Torcasso
-Sexauer
-Reback
-Joris
-Bossche
-Joschka
-zur
-Jacobsmühlen
-Bochi
-Junya
-Hayashi
-Shedden
-Kieran
-O'Mahony
-Kodi
-Arfer
-Airas
-Mortada
-Mehyar
-Lasley
-Lasley
-Pascual
-Seabold
-Hoyer
-Grainger
-Augspurger
-Filimonov
-Vyomkesh
-Tripathi
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diff --git a/doc/source/spelling_wordlist.txt b/doc/source/spelling_wordlist.txt
deleted file mode 100644
index be93cdad083e9..0000000000000
--- a/doc/source/spelling_wordlist.txt
+++ /dev/null
@@ -1,920 +0,0 @@
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\ No newline at end of file