Word of the Day: frigorific

What's the word I'm thinking of?

frigorific (adjective)

Causing cold, chilling

"The reading public did not approve of it -- the thermometer of popular opinion was down at 32, under its frigorific influence, so that we were abundantly justified in stuffing no more of Mr. Twitch's sonnets down the regurgitating throats of the literary multitude."
―Anonymous, "Treason," in Blackwood's Magazine, Volume 10 (1821)

Hmm. Say "What a frigorific day," and people will probably think you're ecstatic about something.