Perfervid
per·fer·vid /pərˈfɜrvɪd/ Pronunciation Key - Show Spelled Pronunciation[per-fur-vid] -adjective very fervent; extremely ardent; impassioned: perfervid patriotism.
[Origin: 1855–60; < NL perfervidus. See per-, fervid]

—Related formsper&#183;fer&#183;vid&#183;i&#183;ty, per&#183;fer&#183;vid&#183;ness, noun
per&#183;fer&#183;vid&#183;ly, adverb
per&#183;fer&#183;vor; especially British, per&#183;fer&#183;vour, noun
Where I saw or heard the word: reading a Newsweek article.

Will I use it? No.

Reason: It sounds ugly.