Designer
来自Big Physics
late Middle English (as a verb in the sense ‘to designate’): from Latin designare ‘to designate’, reinforced by French désigner . The noun is via French from Italian.
wiktionary
design + -er
etymonline
designer (n.)
1640s, "one who schemes or plots;" agent noun from design (v.). In manufacturing or the fine arts, "one who makes an artistic design or a construction plan" is from 1660s. In fashion, as an adjective, "bearing the label of a famous clothing designer" (thus presumed to be expensive or prestigious), from 1966. Designer drug, one that mimics an illegal narcotic but has a different chemical composition so as to avoid legal restrictions, is attested by 1983.
