Enthusiasm (for) (6)
I believe the answer is:
ardour
(Other definitions for ardour that I've seen before include "Fervency" , "Passion, rapture" , "Passion and intensity" , "Fervour, zeal" , "causing some heat" .)
I believe the answer is:
ardour
(Other definitions for ardour that I've seen before include "Fervency" , "Passion, rapture" , "Passion and intensity" , "Fervour, zeal" , "causing some heat" .)