A person who makes or sells bonnets; a bonnet maker or milliner.
From 'bonnet' plus the agent suffix '-er', forming a noun that denotes someone whose profession involves making or dealing in bonnets, a common trade occupation.
Bonneter was a real profession in pre-industrial cities where specialized artisans made a living crafting just bonnets—this word reminds us of a time when people dedicated entire careers to single garments!
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