Meaning

adjective characterized by intense emotion

adjective extremely hot; - Nathaniel Hawthorne; - Frances Trollope

originFrom Middle English fervent, from Old French fervent (modern French fervent), from Latin ferventem, the accusative masculine or feminine singular form of fervēns (“burning, fiery; hot; zealous; etc.”), the present active participle of ferveō (“to burn; to be hot; (figurative) to be agitated, fired up, or inflamed; etc.”), ultimately from Proto-Indo-European *bʰrewh₁- (“to boil; to brew”).

Etymology from Wiktionary, CC BY-SA 3.0