6 letter words:
privet11,
5 letter words:
viper10,
rivet8,
tripe7,
4 letter words:
perv9,
rive7,
vert7,
vier7,
peri6,
pert6,
pier6,
ripe6,
trip6,
rite4,
tier4,
tire4,
3 letter words:
rev6,
vet6,
vie6,
per5,
pet5,
pie5,
pit5,
rep5,
rip5,
tip5,
ire3,
rei3,
ret3,
tie3,
2 letter words:
pe4,
pi4,
er2,
et2,
it2,
re2,
ti2,