English

fool-hearted

First attested in 1851.

A compound of fool + hearted

Latin follis ‘bellows’

Old French fol ‘foolish’

Middle English fol

English fool

Middle English herte

Middle English herted ‘having a specified disposition, emotion, or…’

first attested First attested in 1851 (as stated in the etymology)

The story

First attested in 1851. From fool + hearted, or perhaps an alteration of full-hearted.

adj Having the heart of a fool; foolish.

Language periods are conventional ranges, not dates for this word.

Etymograph / fool-hearted