much needed word of the day

Thanks to S.K. -- not crestfallen, I am now crestaplomb. Who knew?

aplomb

One entry found for aplomb.
Main Entry: aplomb
Pronunciation: &-'pläm, -'pl&m
Function: noun
Etymology: French, literally, perpendicularity, from Middle French, from a plomb, literally, according to the plummet
: complete and confident composure or self-assurance : POISE
synonym see CONFIDENCE

As always, credit to Merriam-Webster's Online Dictionary from which this definition was cut and pasted.