Quite possibly ill-advised.
Sure, except that if I make up a word, it isn’t a “real” word unless one of two things happen: either millions of people adopt it and it’s usage becomes commonly accepted by all but the purists; or else when someone says “that’s not a word” I can play rules lawyer, and point out that it meets all the criteria for how English words have historically been constructed from root words. It you ain’t popular, you gotta be correct.
gryphon.
You didn’t say *which *end **gry **was on.
It’s “two common words that end in -gry,” FWIW. The term “maugry” exists in English (i.e. southern Great British) slang, though I’m not clear on the exact meaning – my impression is skimpy and below standard, as in a too-small portion of a too-weak stew. No doubt there are other oddball forms.
If you are more than just hungry, you say, “I’m hongry!”