6 letter words:
trivet9,
ritter6,
territ6,
triter6,
5 letter words:
river8,
rivet8,
tetri5,
titer5,
titre5,
trier5,
trite5,
4 letter words:
rive7,
vert7,
vier7,
vire7,
vite7,
rite4,
ritt4,
tier4,
tire4,
tirr4,
tite4,
tret4,
trie4,
3 letter words:
rev6,
vet6,
vie6,
err3,
ire3,
rei3,
ret3,
rit3,
tet3,
tie3,
tit3,
2 letter words:
er2,
et2,
it2,
re2,
te2,
ti2,