poonacEtymologySinhalese [script needed] (punakku) (compare Tamil புண்ணாக்கு (puṇṇākku)), from Sanskrit पिण्याक (piṇyāka).poonac means A kind of oil cake prepared from the coconut. Lexicurio rates it Sui generis — a strength score of 91 out of 100.nounA kind of oil cake prepared from the coconut.