Two bonnets for sale at an open market.
- in Scotland, a flat, brimless cap, worn by men and boys
- a hat with a chin ribbon, worn by children and women
- Informal any hat worn by women or girls
- a metal covering, hood, or cowl, as over a fireplace, stove, or chimney for draft or ventilation
- Brit. an automobile hood
- Naut. a strip of canvas fastened by lacing to the bottom of a sail to increase sail area
Origin of bonnetMiddle English and amp; Old French bonet ; from Medieval Latin bonitum aphetic ; from abonnis, kind of cap
- a. A hat of cloth or straw, often held in place by ribbons tied under the chin, that is worn by women and children.b. Scots A brimless cap worn by men or boys.
- A removable metal plate over a machine part, such as a valve.
- Chiefly British The hood of an automobile.
- a. A windscreen for a chimney.b. A cover for a fireplace.
- Nautical A strip of canvas laced to a fore-and-aft sail to increase sail area.
transitive verbbon·net·ed, bon·net·ing, bon·nets
Origin of bonnetMiddle English bonet, cap, from Old French, material for a headdress, perhaps from Medieval Latin obbonis, probably of Germanic origin.
- A type of hat, once worn by women or children, held in place by ribbons tied under the chin.
- A traditional Scottish woollen brimless cap; a bunnet.
- (by extension) The polishing head of a power buffer, often made of wool.
- (Australia, UK, New Zealand, South Africa, automotive) The hinged cover over the engine of a motor car; a hood.
- (nautical) A length of canvas attached to a fore-and-aft sail to increase the pulling power.
- The second stomach of a ruminant.
- Anything resembling a bonnet (hat) in shape or use.
- A small defence work at a salient angle; or a part of a parapet elevated to screen the other part from enfilade fire.
- A metallic canopy, or projection, over an opening, as a fireplace, or a cowl or hood to increase the draught of a chimney, etc.
- A frame of wire netting over a locomotive chimney, to prevent escape of sparks.
- A roofing over the cage of a mine, to protect its occupants from objects falling down the shaft.
- In pumps, a metal covering for the openings in the valve chambers.
(third-person singular simple present bonnets, present participle bonneting, simple past and past participle bonneted)
- (dated) To pull the bonnet or cap down over the head of.
- bent on
From Middle English bonet, from Middle French bonet (Modern French bonnet), from Old French bonet (“material from which hats are made”), from Frankish *bunni (“that which is bound”), from Proto-Germanic *bundiją (“bundle”), from Proto-Indo-European *bʰendʰ- (“to tie”). Compare also Late Latin abbonis, obbonis (“ribbon of a headdress”), also of Germanic origin, from Frankish *obbunni, from *ob- (“above, over”) + *bunni. Cognate with Old High German gibunt (“band, ribbon”), Middle Dutch bont (“bundle, truss”), Gothic (gabundi, “bond”). More at over, bundle.