What does "coracan" mean?

Finger millet (Eleusine coracana).

Coracan

Common synonyms include: african millet, corakan, eleusine coracana, finger millet, kurakkan, ragee.

noun

noun ·Rare ·Advanced level

Noun

1
Finger millet (Eleusine coracana).
2
East Indian cereal grass whose seed yield a somewhat bitter flour, a staple in the Orient wordnet

From Sri Lankan Tamil குரக்கன் (kurakkaṉ), which is cognate with, if not from, Sinhalese කුරක්කං (kurakkaṁ).