GENEALOGY, n. An account of one’s descent from an ancestor who did not particularly care to trace his own.

Ambrose Bierce (1842–1914?) American writer and journalist

“Genealogy,” The Cynic’s Word Book (1906)
    (Source)

Included in The Devil's Dictionary (1911). Originally published in the "Devil's Dictionary" column in the San Francisco Wasp (1885-02-21).