From: Richard Wordingham
Message: 48342
Date: 2007-04-18
> Another possible cognate of the same root is *akwa: 'running water', thePIE *akwa: is attested by both Latin and Germanic, with some possible
> source of Latin acqua 'water', where it replaced the common inherited IE
> word. Hydronyms with *-apa/aba and *-upa/uba would also have come from
> this source.