fervency

from WordNet (r) 3.0 (2006)

fervency
    n 1: feelings of great warmth and intensity; "he spoke with
         great ardor" [syn: {ardor}, {ardour}, {fervor}, {fervour},
         {fervency}, {fire}, {fervidness}]

from The Collaborative International Dictionary of English v.0.48

Fervency \Fer"ven*cy\, n. [Cf. OF. fervence. See {Fervent}.]
   The state of being fervent or warm; ardor; warmth of feeling
   or devotion; eagerness.
   [1913 Webster]

         When you pray, let it be with attention, with fervency,
         and with perseverance.                   --Wake.
   [1913 Webster]