List of expert words

The alphabetical list of words here are rare and only some people know about it. Source YT video:(Lavalava, others not included in source)

A
Abomasum

Adscititious

Amphisbaena

Anfractuous

Anguilliform

Argute

Archaeopteryx

Astrobleme

Autotomy

B
Bandoline

Benthos

Bergschrund

Blatherskite(s)

Boilover

Borborygmus

Breatharian

Brouhaha

Bruhaha

Burnsides

C
Cacoethes

Canorous

Callipygian

Callithumpian

Chiliad

Chanticleer

Clepsydra

Colporteur

Comess

Commensalism

Concinnity

Conniption

Coriaceous

Criticaster

Cryptozoology

Cyanic

Cybersquatting

Czareviches

D
Dariole

Deasil

Decubitus

Defervescence

Deracinate

Digerati

Disenthral

Disaccharide

Divaricate

Doryphore

Dragoman

E
Edacious

Effable

Ensorcell

Entomophagy

Ergometer(s)

Erubescent

Eurythmic

Eviternity

Exsanguine

Extramundane

F
Flocculent

Forehandednesses

Freehandednesses

Funambulist

Furuncle

Futhark

Futz

G
Galligaskins

Gedankenexperiments

Gobbledygook

H
Hallux

Haruspex

Humdudgeon

I
Incrassate

Incunabula

J
Jinriksha

Jipijapa

Jumentous

K
Karateka

Kenspeckle

Khaddar

L
Lactarium

Lavalava

Liripipe

Logomachy

Luculent

Lycanthropy

Lysosomal

M
Malacostracan(s)

Mishmashes

Mim

Mimsy

Moonraker

N
Ne'er-do-weel

Nonchruchgoer(s)

O
Omnicompetence

Omophagy

Omphalos

Opsimath

Organochlorine

P
Paradente

Pedicular

Piwakawaka

R
Ratah

S
Sesquipedalian

Shiitake

Skimmington

Suedehead

T
Triskaidekaphobia/Triskaidekaphobic

Tsesarewitches

Tsktsking

Turangawaewae

U
Uniped

W
Whatshername(s) (The only valid word in the editor mode as of creation of the page, but more words are now valid)