Bud
来自Big Physics
wiktionary
From Middle English budde(“bud, seed pod”), from Proto-Germanic *buddǭ (compare Dutch bot(“bud”), German Hagebutte(“hip, rosehip”), regional German Butzen(“seed pod”), Swedish dialect bodd(“head”)), perhaps from Proto-Indo-European *bʰew-, *bu-(“to swell”).
Back-formation from buddy.
etymonline
bud (n.)
"undeveloped growth-point of a plant," late 14c., budde, origin unknown, perhaps from Old French boter "push forward, thrust," itself a Germanic word (compare Dutch bot "bud," Old Saxon budil "bag, purse," German Beutel), or perhaps from Old English budd "beetle."
bud (v.)
"put forth or produce buds," c. 1400; see bud (n.). Related: Budded; budding.
bud
familiar form of address for a male, 1851, perhaps a shortening of buddy (q.v.) and ultimately from brother.
