a

a [an] art

OE án, one; see one, adj.

1. [The form “a” appears preceding words that begin with a consonant.]
2. [The form “an” appears preceding words that begin with a vowel.]
3. [To indicate a unit of time].
4. Any.

a [a'-] particle

OE y- or I- < Germanic ge-.

1. [Prothesis form that provides a syllable in lyric poetry.]
2. [Archaic prefix form.]