what means the sufix /age/ in Language

Dean wrote: HackettFan wrote: Awhile back we had a productive use of -age: Tune + age = Tunage. A collection of tunes that someone has on hand. This example adds -age to something that's already a noun (I say that because the verb form does not seem to be as relevant). Even though tuneage is a made-up hipster slang word and is a somewhat artificial creation of a mass noun, it still follows the form of converting the word "tune" into a mass noun by describing the (admittedly abstract) action of a tune. Unfortunately that doesn't necessarily work with all hep slang words ending age, such as foodage (a mass noun but not really the action of food), but does work with drinkage, eatage and munchage.

This slang usage of "-age" may originally have been propagated by the punk band the Descendents, who used it frequently throughout the '80s, in the same way that more recent mainstream slang has used it.  (They even called a live album Liveage!)