burgeon

From Middle English burjon, burjoun (“shoot, bud”), from Anglo-Norman burjun, burgeon, burgon (compare Old French burjon (“a bud”)), from Old Frankish burjō (“sprout, offshoot, descendant”), from Proto-Germanic burjô (“sprout, descendant, offshoot”), from Proto-Germanic burjaną (“to raise up”), from Proto-Indo-European bʰer-. Compare Old High German burjan, burien, burren (“to push up, raise”), Old English byrian (“to come up, occur”), Old English byre (“child, son, descendant”), Albanian buron (“sprout, spring, gush out”). More at bear. Alternate etymology derives Old French burjon (“bud”) from Vulgar Latin burrionem, accusative of burrio, from Late Latin burra (“wool, fluff”) (presumably from the down covering certain buds).

From Middle English burjounen, from Old French borjoner, bourjoner, burjuner.