For your username, we don't usually make distinction between canon and non-canon words, since you're freely allowed to make any name you want -- Spanish, Russian, Dothraki, etc. When I gave you the word "strunkiin", I basically gave you "strun-kiin" as a word, which follows known Dovahzul naming-conventions for people (as in the example I gave). 

(Rambling ahead...)

Naturally, if someone comes across that name, they won't immediately known if the translation is "this person is the embodiment of storms" or "this person is a descendant of a tribe whose given name is 'Storm-borm'". Naturally one would explain their name anyway. If you want to clarify that it's not an in-game word, just use "Strun-kiin" if you want...