IPA: /ˈmænərli/
KK: /ˈmænərli/
Showing good behavior and respect towards others; polite and well-mannered.
The children were mannerly during the dinner party, using their utensils properly and speaking softly.
In a way that shows good manners or politeness.
She spoke mannerly to her guests, making them feel welcome.
Mannerly → It is formed from "manner" (from Old French *manière*, meaning way or method) and the suffix "-ly" (meaning in a manner of). The word "mannerly" means behaving in a way that is proper or polite, reflecting a certain method of conduct.
Think of 'manner' as a way of behaving, and the '-ly' indicates how one behaves. So, mannerly means behaving in a proper way.