Ardour is burning enthusiasm or passion. Speak with ardour, the ardour of a convert, lose none of his ardour.
It is formal and slightly old-fashioned, and it suits causes as much as people. Americans spell it ardor, and both spellings come from a Latin root meaning to burn.
1nounardourBurning enthusiasm or passion.
“His ardour for the cause outlasted every one of his friends.”
ardour is a feeling.
Also accepted in games: ardor
Proto-Indo-European
*h₂eHs-
Middle English
ardour
English
ardor
English, today
ardour
Built from
ardor comes from Middle English ardour. From Middle English ardour, ardowr, ardure, from Anglo-Norman ardour, from Old French ardur, from Latin ardor, from ardere (“to burn”).
Etymology from Wiktionary, CC BY-SA