The word for today is…
fervent (adj) – 1. Having or showing great emotion or zeal; ardent.
2. Extremely hot; glowing.
Source : The Free Dictionary
Etymology : Mid-14th century, from Old French fervent “fervent, ardent” (12th century), from Latin ferventem (nominative fervens) “boiling, hot, glowing,” figuratively “violent, impetuous, furious,” present participle of fervere “to boil, glow,” from PIE root *bhreuə- “to boil, bubble”. The figurative sense of “impassioned” is first attested circa 1400.