Webster's Revised Unabridged Dictionary -- Volume AB

An, conj. [Shortened fr. and, OE. an., and, sometimes and if, in introducing conditional clauses, like Icel. enda if, the same word as and. Prob. and was originally pleonastic before the conditional clause.] If; -- a word used by old English authors. Shak.

Nay, an thou dalliest, then I am thy foe.
B. Jonson.

-- An if, and if; if.

An"a-. [Gr. ανα on; in comp., on, up, upwards.] A prefix in words from the Greek, denoting up, upward, throughout, backward, back, again, anew.

A"na (ā"n), adv. [Gr. ανα (used distributively).] (Med.) Of each; an equal quantity; as, wine and honey, ana (or, contracted, aa), ? ij., that is, of wine and honey, each, two ounces.

An apothecary with a . . . long bill of anas.
Dryden.

-a"na (?). [The neut. pl. ending of Latin adjectives in -anus.] A suffix to names of persons or places, used to denote a collection of notable sayings, literary gossip, anecdotes, etc. Thus, Scaligerana is a book containing the sayings of Scaliger, Johnsoniana of Johnson, etc.

Used also as a substantive; as, the French anas.

It has been said that the table-talk of Selden is worth all the ana of the Continent.
Hallam.

An`a·bap"tism (?), n. [L. anabaptismus, Gr. αναβαπτισμοσ: cf. F. anabaptisme. See Anabaptize.] The doctrine of the Anabaptists.

An`a·bap"tist (?), n. [LL. anabaptista, fr. Gr. as if αναβαπτιστησ: cf. F. anabaptiste.] A name sometimes applied to a member of any sect holding that rebaptism is necessary for those baptized in infancy.