managen = to manage I think geizen means to be generous.

geizen = something like to ache for..
vermuten = to suspect
giften = to annoy someone
managen = to manage or to help
I hope I helped..??

ok i know i answered this already but just to clear things up:
geizen= to be frugal/stingy :D

ooh okay.. thanks for me too!!
I'm from holland.. so German is not my first language.. I just got it out of a dictionary and my memory.. from what is left of my schooldays :D