bonnet

nouns

a hat tied under the chin
bonnet, poke bonnet
protective covering consisting of a metal part that covers the engine
"there are powerful engines under the hoods of new cars"; "the mechanic removed the cowling in order to repair the plane's engine"
bonnet, cowl, cowling, hood

verbs

dress in a bonnet
bonnet
is a type of (narrower)
put on or wear a hat
"He was unsuitably hatted"
hat