Deep, adv. To a great depth; with depth; far down; profoundly; deeply.
Deep-versed in books, and shallow in himself. Milton.
Drink deep, or taste not the Pierian spring. Pope.
☞ Deep, in its usual adverbial senses, is often prefixed to an adjective; as, deep-chested, deep-cut, deep-seated, deep-toned, deep-voiced, “deep-uddered kine.”