I was just considering the character of Quark and what an unusual name it was. Of course a quark is a sub-atomic particle or the German word for cottage cheese, but it seems peculiar that a Ferengi, a race focused on profits, should be named after a sub-atomic particle.
The Ferengi have their own language of course which led me to wonder does the name 'Quark' have any significance in Ferengi culture? If there is no evidence regarding this in-universe, I would alternatively be interested in why, out-of-universe, it was decided to name a member of a species interested in profits after a sub-atomic particle.