opeN umpqua

...open peua(N)=pe/be-ua/own im-petus, opeuh(N/preterit peua)= ope-(N)-uh=opeN.
umpqua river(oregon, usa)= um=ome(N) p=peua(N) qua=quaitl(N)=
ompeuaquaitl(N)= two/ome-headed/quaitl begin/peua= two-headed(begins)river.