English word tardive comes from Latin -ivus (Adjective suffix.), Latin tardus
-ivus (Latin)
Adjective suffix.
tardus (Latin)
Dull, stupid, slow-witted. Late, lingering. Slow, sluggish. Tardy.
*tardivus (Vulgar Latin)
*tardivus (Latin)
(Vulgar Latin) late, tardy.
tardif (Old French)
Late; not on time.
tardive (English)
(medicine) belated (of symptoms etc.).