a-
Negating word part
A- is a prefix with two main functions.
It can mean "not" or "without," from Greek: amoral, atypical, asymmetric.
It can also mean "on," "in," or "at," from Old English: afoot, asleep, afire, aboard.
The second type often appears with verbs to form adjectives or adverbs describing a state: The house was ablaze.
On land from water
- aboardUpon a vehicle
- afieldAway, especially outdoors
- afarAt great distance
- asideBrief theatrical digression
away · aground · aloft · ahead · astray · afoot · adrift · afloat
ashore
On land from water
aside · away · aground · aloft · ahead · astray · afoot · adrift · afloat · aback
asleep
In a state of rest
afire · aflame · aglow · aflutter · alight · abuzz · astir · atremble · aquiver · aglitter
asymptomatic
Diseased without outward signs
- arrhythmicLacking regular beat
- anhydrousContaining no water
- anaerobicNot requiring oxygen
achromatic · agnostic · anemia · amnesia · anomaly · amorphous · aphasia · aplastic · abiotic · acellular
an, atonal, atonality, asexual, amoral, apolitical, asymmetric, asymmetrical, asymmetry