7 letter words:
reprive12,
6 letter words:
prieve11,
reiver9,
riever9,
verier9,
5 letter words:
perve10,
preve10,
viper10,
reive8,
revie8,
rieve8,
river8,
prier7,
riper7,
4 letter words:
perv9,
veep9,
erev7,
ever7,
rive7,
veer7,
vier7,
vire7,
peer6,
pere6,
peri6,
pier6,
pree6,
ripe6,
3 letter words:
eve6,
rev6,
vee6,
vie6,
pee5,
per5,
pie5,
pir5,
pre5,
rep5,
rip5,
ere3,
err3,
ire3,
ree3,
rei3,
2 letter words:
pe4,
pi4,
ee2,
er2,
re2,