⚠️ trisvabhāva

The situation of trisvabhāva is a bit tricky. I was told (by Schmithausen) that the term trisvabhāva does not occur (or perhaps hardly occurs) by itself but only as a part of a larger compound. Should we consider such words “ghost words”? In order to avoid risk using unattested words, one may perhaps avoid using trisvabhāva and instead use “three svabhāvas.”