/ ˈfɜːvənt; NAmE ˈfɜːrv-/ adjective
[ usually before noun ] having or showing very strong and sincere feelings about sth
SYN ardent :
a fervent admirer / believer / supporter
a fervent belief / hope / desire
► fer·vent·ly adverb
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WORD ORIGIN
Middle English : via Old French from Latin fervent- boiling, from the verb fervere . Compare with fervid and fervour .