Re: [tied] IE genitive

> At least most of the examples I have seen fall under such a
> headline. When -íV- loses its syllabicity and therefore (or
> presumably even before then) retracts the accent, the syllable now
> accented receives a falling tone; if it had been falling already,
> nobody speaks about it, but if it had been rising it is called
> métatonie douce. If substantivizations create barytone variants late
> enough, the result has a falling tone.

While we are on that: what if the newly accented syllable can't accept a
circumflex simply because its nucleus is short? In that case darýbine:
metatònija automatically yields a _long_ circumflexed syllabic nucleus
-- a short one is prolongated of necessity. How do you explain that?
Analogy?