Once you step outside standard literary form, throwing in a few words of your own seems perfectly reasonable.
The Oddity of Words
Robert Cormack

Shakespeare being a penultimate reference to word invention, I wonder if it’s simple the permeation of a new word that makes it acceptable? If enough people use it or see it, and don’t raise their pitchforks in objection, then okay we’ll allow it.

I like to think that’s how ‘selfie' made it’s way into the dictionary. That tidal wave of milennials and teens all clamoring can create overwhelming pressure.