The African elephant is a most "industrious digger," and grubs up innumerable roots as food.
c.1300, olyfaunt, from Old French oliphant (12c.), from Latin elephantus, from Greek elephas (genitive elephantos) "elephant, ivory," probably from a non-Indo-European language, likely via Phoenician (cf. Hamitic elu "elephant," source of the word for it in many Semitic languages, or possibly from Sanskrit ibhah "elephant").
Re-spelled after 1550 on Latin model. As an emblem of the Republican Party in U.S. politics, 1860. To see the elephant "be acquainted with life, gain knowledge by experience" is an American English colloquialism from 1835.