coracanEtymologyFrom Sri Lankan Tamil குரக்கன் (kurakkaṉ), which is cognate with, if not from, Sinhalese කුරක්කං (kurakkaṁ).coracan means finger millet (Eleusine coracana). Lexicurio rates it Rare gem — a strength score of 81 out of 100.nounFinger millet (Eleusine coracana).