Emily Dickinson Lexicon

BUTT, v.i. [W. pwtiaw, to butt, to thrust; It. buttare; Sp. botar; Port. botar, to thrust, or throw; Fr. botte, a thrust; from the same root probably as but, bout; L. peto.]

To thrust the head forward; to strike by thrusting the head against, as an ox or a ram. – Wotton. Dryden.