n. (also sumach) 1 any shrub or tree of the genus Rhus, having reddish cone-shaped fruits used as a spice in cooking. 2 the dried and ground leaves of this used in tanning and dyeing.
[ ME f. OF sumac or med.L sumac(h) f. Arab. summak ]
SUMAC
Meaning of SUMAC in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012