8 letter words:
tirrivie11,
5 letter words:
river8,
rivet8,
trier5,
4 letter words:
rive7,
vert7,
vier7,
vire7,
vite7,
rite4,
tier4,
tire4,
tirr4,
trie4,
3 letter words:
rev6,
vet6,
vie6,
err3,
ire3,
rei3,
ret3,
rit3,
tie3,
2 letter words:
er2,
et2,
it2,
re2,
te2,
ti2,