fervent

adjective5

1. •
   Very hot; burning, scorching; also, glowing with heat.

   • Again my Thoughts to Thee [Jesus] aspire / In fervent Flames of strong Desire. — 1739
2. •
   (figurative) Of a person, or their actions, interests, or nature: exhibiting persistent belief or conviction, and enthusiasm or zeal; ardent, earnest, passionate.

   • Butt above all thyngꝭ [thynges, i.e., things] have fervent love a monge you. For love covereth the multitude of sines. — 1526
3. •
   (no longer used, historical) Of a drug: having an abundance of heat as one of the four qualities believed to be characteristic of all things; hot rather than cold, dry, or moist.

   • The common Camomill is of complexion hoate and dry, and not so feruent as the Romaine Camomill, but more pleasant and gentill. — 1578
4. •
   (no longer used) Of cold: intense, severe.
5. •
   (figurative, no longer used) Of a thing such as a battle, unrest, etc.: intense, severe; also, of a wild animal: fierce.

   • A moment ends the fervent din, / And all is hushed, without and within; […] — 1815