Callow

Part of speech: noun (n.)

A kind of duck. See Old squaw.

Part of speech: adjective (a.)

1. Destitute of feathers; naked; unfledged. An in the leafy summit, spied a nest, Which, o'er the callow young, a sparrow pressed. Dryden.

2. Immature; boyish; "green"; as, a callow youth. I perceive by this, thou art but a callow maid. Old Play [1675].