A combination of the english words "Proud" and "Fond". Often used when a sense of joyous ecstacy overcomes your ability to comprehend spacing between words resulting the the binding the the afformentioned base words.
"I am quite pround of my son..."
"I knowone guitar solo, but it's nothing i'm very pround of..."
Guy 1: "Dude that circle you drew is pround."
Guy 2: "What?"
Guy 1: "You know, like perfectly round."
Guy 2: "oh, yeah it is, now that you mentioned it"