Etymology:
altered (by assoc. with favor) < ME curraien favel, to flatter, lit., curry the chestnut horse; OFr favel, chestnut horse (taken as symbol of duplicity) < dial. form of OHG falo, pale, akin to OE fealu; see fallow
to try to win favor by flattery, fawning, etc.
See curry in American Heritage Dictionary 4 Idioms
