do (one's) darnedest

To put forth the utmost amount of energy or effort toward some task or goal. A more polite version of "do one's damnedest." Money is a little tight at the moment, but I'll do my darnedest to be there for your wedding.

Common Names:

Name	Pronounced	Usage
Agnar	-	Norwegian, Icelandic
Haul	-	Welsh
Nicomedes	-	Ancient Greek (Latinized)
Velasco	-	Medieval Spanish
Helah	HEE-lə (English)	Biblical
Hayim	-	Hebrew