7 letter words:
enfever13,
6 letter words:
enerve9,
enfree9,
evener9,
veneer9,
5 letter words:
fever11,
eeven8,
erven8,
nerve8,
never8,
reeve8,
4 letter words:
eevn7,
erev7,
even7,
ever7,
feen7,
feer7,
fere7,
fern7,
free7,
neve7,
reef7,
veer7,
erne4,
reen4,
3 letter words:
erf6,
eve6,
fee6,
fen6,
fer6,
nef6,
ref6,
rev6,
vee6,
een3,
ene3,
ere3,
ern3,
nee3,
ree3,
ren3,
2 letter words:
ef5,
fe5,
ee2,
en2,
er2,
ne2,
re2,