From: Sean Whalen
> On 2007-06-07 22:56, Sean Whalen wrote:If there had been a stage where -ulum became the
> >> <ra:dula> and <pendulum> are, in my opinion, new
> >> formations, parallel to
> >> <te:gula, re:gula> from <tego:, rego:>.
> > The long V is explained by ?
> Lachmann's Law. Influenced by <te:ctum, re:ctum>,
> with which they were
> semantically connected. Note that there is no length
> in <tragula> (:
> <traho:, tractum>, which is not a Lachmann verb.
> >> In oldThere was no accent shift in neuter plurals. In
> >> instrumental nouns the
> >> variant *-tro- was preferred after roots
> >> a liquid,
> > PIE *trom and *tlos are not variants of one
> > morpheme; they show dif. accent and variants of
> > e/0-grade in different cases. Since they are
> > to each other, and rules create irregular changes,
> > they often are mixed or one gains full
> This is a strange thing to say. Those accent
> differences and e/zero
> grades can easily result from the fact that *-tlom
> neuters had *-tlah2
> colectives with an accent shift.
> > Latin shows late rules changing l-l > l-r, etc.,Not always:
> > I don't believe you can use this sort of thing to
> > prove ra:strum is older than ra:dula.
> But in instrument nouns we see the /r/ variant after
> _both_ /l/ _and_
> /r/ in the root