n. (pl. -ies) an aromatic composite plant, Balsamita major, formerly used in medicine and for flavouring ale. [OE cost f. L costum f. Gk kostos f. Arab. kust an aromatic plant + (St) Mary (with whom it was associated in medieval times)]
COSTMARY
Meaning of COSTMARY in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012