Re: [tied] suffixes in -ario-/-ariu-

At 10:35:43 AM on Thursday, January 11, 2007, Carl Edlund
Anderson wrote:

> Are the Latin suffixes -arius (agentive) and -arium
> (instrumental) borrowed from Greek -arios and -arion, or
> are the Greek forms borrowed from Latin? Or are they
> independent evolutions?

> Do similar suffixes pop up elsewhere in IE? What is/are
> the etymology(s) of Greek/Latin -ario-/-ariu-? (Is there
> some kind of rhotacism, with an earlier -asio- form?)

Watkins, Amer. Her. Dict. of IE Roots, says that Latin
<-a:rius> is from Italic <-a:s-io->, whose first element is
obscure, and whose second represents a PIE relational
adjectival suffix *-yo- 'related or belonging to'.

Brian