Bonnet

Webster's Condensed Dictionary- A Condensed Dictionary of the English Language · 1909 · p. 72

bon'net, n. A covering for the head. (Fort.) Part of a parapet elevated to screen the other part and its terre-pleine. (Kaut.) An addition to a sail. A plate or a dome-shaped casing; a frame of wire netting over a locomotive chimney. [F., fr. LL. bonnet a, a kind of stuff.] — Bon'neted, a. Wearing a bonnet. (Fort.) Protected by, etc.