ascian: inhabitant of the equatorial zone
askefise: one who blows on ashes to bring them to flame
asperity: roughness of surface or sound
asportation: to carry property away wrongfully
assiduity: persevering application to a pursuit
assuetude: accustomedness; habit
astern: at the stern of a ship
astraphobia: fear of being struck by lightning
astrobolism: sun-stroke
astrometeorology: study of effect of stars on climate
atactic: irregular
athanasy: deathlessness
athetosis: nervous twitching of digits and extremities

Athetosis - I just noticed that the definition given is flawed. The abnormal movements are not
"twitching" - they are slow and writhing. And the dictionary definition errs in calling it a muscular
disorder. The lesion is in the central nervous system, and not limited to "cerebtral palsy" , though
that would be the most common cause.
athetosis
n.,
pl. 3ses 73scz8 a muscular disorder characterized by continuous, slow, twisting motions of the hands, feet, etc., as in cerebral palsy
ath4e[toid# 73t.d#8 or ath#e[tot$ic 73t9t4ik8
adj.

atmatertera: great-grandfatherüs grandmotherüs sister
atony: muscular weakness
atrous: jet black
attingent: touching
attuition: operation between sensation and perception
audile: person more attuned to sound than the other senses
aught: at all
aureole: radiant light around head or body of holy personage
aurigation: charioteering
auscultation: listening to sounds arising within organs
autecology: study of ecology of one species
autogenesis: spontaneous generation
autonym: a writer's real name; work published under writer's own name

autotelic: being an end in itself
auxology: science of growth
aveniform: shaped like oats
avionics: the science of electronic devices for aircraft
awn: beard or similar bristly growth on stalk of grain
azoth: alchemical name for mercury
bacchanal: drunkard; reveller
bactericide: killer of bacteria
badinage: playful repartee or banter
bahadur: self-important official
bakelite: type of solid plastic
balbutient: stammering
balistarius: crossbowman

Some of these definitions deserve challenge. "Bahadur" I have seen in Persian legends as
title of respect. Sure, it could be used as put-down to a present day self-appointed
bigshot, but the origin should not be forgotten.