crocus
Concise Oxford English Dictionary © 2008 Oxford University Press:
crocus /ˈkrəʊkəs/
▶noun (pl. crocuses or croci /-kʌɪ, -kiː/) a small spring-flowering plant of the iris family, which grows from a corm and bears bright yellow, purple, or white flowers. [Genus Crocus.]
– origin ME: via L. from Gk krokos, of Semitic origin.
'crocus' also found in these Oxford entries:

