Meaning

adjective having or displaying warmth or affection

adjective extravagantly or foolishly loving and indulgent

adjective (followed by `of' or `to') having a strong preference or liking for

originFrom Middle English fond, fonned, past participle of fonnen (“to be foolish, be simple, dote”), equivalent to fon + -ed. More at fon.

Etymology from Wiktionary, CC BY-SA 3.0