Home › Words › U › upflowerupflowerupflower means to flower; to reach a state of full development or achievement.EtymologyFrom up- + flower.verbTo flower; to reach a state of full development or achievement.e.g.“The beauteous babe — a sour old beldame's care, / Upflowered at length a matchless maid, and fair.” — 1875, Paul Hamilton Hayne, The Mountain of the Lovers:Definitions & examples from Wiktionary (CC BY-SA 3.0).