7 letter words:
enfever13,
6 letter words:
evener9,
veneer9,
5 letter words:
fever11,
nerve8,
never8,
reeve8,
4 letter words:
even7,
ever7,
fere7,
fern7,
free7,
neve7,
reef7,
veer7,
erne4,
3 letter words:
eve6,
fee6,
fen6,
fer6,
ref6,
rev6,
vee6,
ere3,
ern3,
nee3,
ree3,
2 letter words:
ef5,
fe5,
en2,
er2,
ne2,
re2,