oca
Concise Oxford English Dictionary © 2008 Oxford University Press:
oca /ˈəʊkə/
▶noun a South American plant related to wood sorrel, cultivated in Peru for its edible tubers. [Oxalis tuberosa.]
– origin C17: from Amer. Sp., from Quechua ócca.
'oca' also found in these Oxford entries:

