IPA: /ˈfɒndli/
KK: /fɑndli/
In a way that shows love or affection.
She spoke fondly of her childhood memories.
Fondly → It is formed from "fond" (from Old French *fondre*, meaning to melt or be tender) and the suffix "-ly" (meaning in a manner of). The word "fondly" means in a tender or affectionate manner.
Think of being tender or affectionate ('fond') and how the '-ly' makes it describe the way you express that tenderness.