Nouns:

abeyance
acalculia
acedia
acme
acolyte
aegrotat
aggiornamento
aggregate
ait
amusia
anadiplosis
anagoge (anagogy)
analects (analecta)
androcracy
andragogy
anhedonia
anosmia
antanaclasis
antiphrasis
aperient
arctophile
argy-bargy
ascetic
asperity
atavism
atticism
auscultation
autarchy
avoirdupois
biblioclast
biblioklept
bibliolater
bibliophage
bibliophile
bibliophobe
bibliotaph
bijou
brave new world
breastsummer
caryatid
cash cow
catch-22
cathexis
collywobbles
comity
condottiere
contradistinction
contretemps
cynosure
dekko
deportment
derby
dilettante
diplomatics
dol
Don Juanism
doppelganger
dovecote
doyen
dudgeon
dysesthesia
effigy
emetic
equanimity
esplanade
fata morgana
fiasco
filibuster
flibbertigibbet
foray
furl
fustian
gadabout
gloaming
Gotterdammerung
graduand
gravamen
Grub Street
gynarchy
hacker
hardscrabble
hawkshaw
Hogmanay
horripilation
horst
hypercorrection
hypogeusia
iconoclast
imboglio
interleaf
interrex
jog trot
junto
kakistocracy
kibitzer
kibosh
largesse
lamia
leitmotiv
lese-majeste
lexis
libation
locus classicus
longueur
lotusland
lucubration
malefactor
manse
megalomania
meliorism
metathesis
miasma
moiety
mora
Munchausen syndrome
murdrum
nisus
nymphomania
omerta
onus
opisthograph
opprobrium
oxymoron
palaver
pandect
pandiculation
panopticon
paralipsis
paramnesia
Parkinson's Law
pelf
perfidy
persiflage
Peter Principle
ploce
pooh-bah
pork barrel
prophylaxis
prosateur
quandary
quartan
quidnunc
Risorgimento
Russell's paradox
scion
scop
scurf
sensibility
simulacrum
smithereens
solecism
stalking-horse
stemwinder
sternutation
Stockholm syndrome
suffrage
sundog
symbiosis
tantara
telamon
tergiversation
termagant
thalweg
thanatophobia
thaumaturgy
therblig
Throttlebottom
treacle
trichotillomania
turpitude
variorum
vaward
verbicide
verisimilitude
ylem
Zeno's paradox

Adjectives:

abstemious
adventitious
aerious
antitussive
aperient
a posteriori
ascetic
auspicious
autochthonous
axenic
coeval
consanguineous
convivial
crackerjack
crapulous
demotic
didactic
dilettante
disparate
doggerel
dotty
edacious
emetic
endogenous
ephemeral
erose
euphonious
evanescent
ex cathedra
expeditious
factitious
fantabulous
fraught
frigorific
fugacious
funereal
fustian
gauche
gemutlich
haggard
halcyon
hardscrabble
hoary
impassible
impervious
incandescent
ingenuous
insuperable
internecine
jejune
ligneous
limpid
luculent
malleable
masterful
maudlin
mettlesome
nebulous
nosocomial
nugatory
obsequious
otiose
parsimonious
pedantic
perdurable
pervious
pinchbeck
polyglot
preeminent
primeval
procrustean
protean
puissant
Pyrrhic
quaquaversal
quartan
restive
sallow
sententious
sesquipedalian
sipid
solicitous
sui generis
teleological
tendentious
termagant
toothsome
tractable
uncouth
untoward
variegated
variorum
verbose
vespertine
vincible
vulnerary
zoomorphic

Verbs:

abjure
bamboozle
besmirch
capitulate
clepe
concatenate
demarcate
dissemble
efface
enfranchise
excoriate
expiate
expunge
filibuster
furl
harry
incommode
indite
insinuate
interpolate
jettison
malinger
moil
mollify
palaver
posit
prevaricate
previse
quaff
requite
rusticate
sallow
scrutinize
scumble
shanghai
truckle
ululate
undulate
upbraid
vet
wheedle