1823, "anecdotes collectively," from anecdote + -age. As a jocular coinage meaning "garrulous old age" it is recorded from 1835, and spawned anecdotard (1894).
1670s, "secret or private stories," from French anecdote (17c.) or directly from Medieval Latin anecdota, from Greek anekdota "things unpublished," neuter plural of anekdotos, from an- "not" (see an- (1)) + ekdotos "published," from ek- "out" (see ex-) + didonai "to give" (from PIE root *do- "to give").
Procopius' 6c. Anecdota, unpublished memoirs of Emperor Justinian full of court gossip, gave the word a sense of "revelation of secrets," which decayed in English to "brief, amusing story" (1761).
word-forming element in nouns of act, process, function, condition, from Old French and French -age, from Late Latin -aticum "belonging to, related to," originally neuter adjectival suffix, from PIE *-at- (source of Latin -atus, past participle suffix of verbs of the first conjugation) + *-(i)ko-, secondary suffix forming adjectives (see -ic).
