[tied] Re: IE "river" (5)

--- In cybalist@yahoogroups.com, ND <nmd65@...> wrote:

> Is it possible to include Latin ostium (mouth of a
> river, estuary)? Lithuanian uostas, Russian usti. And
> would the cognate be Ind. as- (mouth)?

Latin o:stium "entrance, rive mouth" (and o:ra "coast") is indeed
normally derived from os "mouth" = Skr. a:s "mouth". The Old Norse
o:ss "river mouth" is another example (also in the name of my city
Århus = a:r o:ss "the mouth of the river").