Meaning

noun a vertical spar for supporting sails

noun nuts of forest trees (as beechnuts and acorns) accumulated on the ground

noun nuts of forest trees used as feed for swine

originFrom Middle English mast, from Old English mæst (“mast”), from Proto-West Germanic *mast, from Proto-Germanic *mastaz (“mast, sail-pole”), from Proto-Indo-European *mazdos (“pole, mast”). Cognate with Dutch mast, German Mast, and via Indo-European with Latin mālus, Russian мост (most, “bridge”), Irish adhmad.

Etymology from Wiktionary, CC BY-SA 3.0