From: Piotr Gasiorowski
>> <ra:dula> and <pendulum> are, in my opinion, newLachmann's Law. Influenced by <te:ctum, re:ctum>, with which they were
>> formations, parallel to
>> <te:gula, re:gula> from <tego:, rego:>.
> The long V is explained by ?
>> In oldThis is a strange thing to say. Those accent differences and e/zero
>> instrumental nouns the
>> variant *-tro- was preferred after roots containing
>> 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 similar
> to each other, and rules create irregular changes,
> they often are mixed or one gains full productivity.
> Latin shows late rules changing l-l > l-r, etc., soBut in instrument nouns we see the /r/ variant after _both_ /l/ _and_
> I don't believe you can use this sort of thing to
> prove ra:strum is older than ra:dula.
> I believe this is regular from many stems, not justI'll write more about that tomorrow (it's long past bedtime in my time
> dentals (since tl>kl, *spektlo+ > -kkl- > -kl- >