Thread:User talk:CodeCat/PGmc adverbs update

I have not been able to find a definitive source for the etymology of the ablative *-nV suffix, but apparently it could also appear in Sanskrit vinā, "without", and Latin supernē, "from above". The suffix could also apparently show up in Germanic *fanē, *hinē, *þanē, according to Kroonen. The former could be derived from PIE *h₂po-, a variant of *h₂epó, which would make it cognate to Latin po-.

If you find it acceptable, we could create the entries with the *-ē ending, with an explanation that the vowel is indeterminate and that that form is either the least problematic or least contested form. If not, then we could take up your earlier proposal to create the forms with the vowel left blank.