What does the Latin phrase "fac probum" mean?

I've worked out that fac is imperative of "facere," and "probum" means good, or something similar to that. But considering "facere" has loads of meanings, I can't work out how the two go together. Help?!


"Probum" means "upright," not just generally good. I would translate that phrase as "Do the right thing."


FACERE =to work zealously, do, accomplish

PROBUM = upright, liberal, generous


Probably "Do good", or something like that because facere means "to make, to do"