7 letter words:
riviere10,
6 letter words:
reiver9,
riever9,
verier9,
5 letter words:
reive8,
river8,
rover8,
vireo8,
4 letter words:
ever7,
over7,
rive7,
rove7,
veer7,
vier7,
3 letter words:
eve6,
rev6,
vee6,
vie6,
voe6,
ere3,
err3,
ire3,
ore3,
ree3,
rei3,
roe3,
2 letter words:
er2,
oe2,
oi2,
or2,
re2,