Designated
来自Big Physics
mid 17th century (as an adjective): from Latin designatus ‘designated’, past participle of designare, based on signum ‘a mark’.
etymonline
designated (adj.)
1868, "appointed or nominated but not yet installed," past-participle adjective from designate (v.). The baseball designated hitter "substitute named before the start of a game to hit for the pitcher" was introduced in the American League in 1973; it soon gave wide figurative extension to designated, as in designated driver (by 1985).
