Euthyphro dilemma asked for evolution.

[genkaus]

Well, that's fine, Tex, except that your definition falls apart just as easily,

How does it fall apart?

and it still doesn't excuse the misleading way you used it,

How is it misleading?

nor that you were attempting to settle a philosophical question by appeal to usage, which is a thinly disguised appeal to popularity, which is a fallacy.

The definition of the world "morality" is not a philosophical question, it is a linguistic one. And use of language is one of the exceptions where appeal to popularity is not a fallacy.

Now if you want to have an in-depth discussion about the Munchhausen Trilemma, well, I say, "Bring it."

I'd never heard if the term before, but a cursory reading leads me to state that I'm one of those who commonly accepts the "axiomatic" horn.