Moly \Mo"ly\, n. [L., fr. Gr. ?.] 1. A fabulous herb of occult power, having a black root and white blossoms, said by Homer to have been given by Hermes to Ulysses to counteract the spells of Circe. --Milton. 2. (Bot.) A kind of garlic ({Allium Moly}) with large yellow flowers; -- called also {golden garlic}.