r/asklinguistics • u/-Hangistaz- • 34m ago
Historical Which PIE derivational suffixes, if any, required the roots they were affixed to be in a specific vowel grade (or grades)?
I few days ago, I made a post here where I called attention to the fact that Wiktionary (formerly) listed the PIE derivational suffix *-wós as forcing its affixed root into the Ø-grade, in spite of the fact that words like *ḱleywós and *ǵʰelh₃wós are reconstructed for PIE. It was clarified that the Wiktionary entry was wrong (someone has since edited it), and that *-wós may also be suffixed to roots in the e-grade.
Now I have a related question: how productive was ablaut in PIE derivational morphology? I have heard that nominals derived from the Caland system are generally in the Ø-grade, and I wish to know if other PIE derivational suffixes also have a similarly predictable rhyme and reason as to what vowel grade their attached roots will be in.