From: Tavi
Message: 68036
Date: 2011-09-11
>I'm afraid this is utterly unprovable.
> And then there is Spanish and Portuguese cachorro (and possible regional forms) which appear to be based on metathesis of
> txakur.
>
> > Apparently, cachorro is derived from an expressive variant *cattullu- of Latin catulus 'puppy'. But of course the intermediate
> > language wasn't Romance.
>
> Somehow either cachorro was influenced by txakur or vice versa.
>
> If catulus were stressed on the 1st syullable, you'd get catlus > cachu- > cachorro.But you've got also vetulu- > vetlu > veclu > viejo, so this won't work.
>