6 letter words:
knifer13,
niffer12,
envier9,
ferine9,
refine9,
veiner9,
venire9,
5 letter words:
kefir12,
knife12,
fever11,
fifer11,
fiver11,
inker9,
kerne9,
reink9,
finer8,
infer8,
nerve8,
never8,
nieve8,
reive8,
riven8,
4 letter words:
fink11,
keef11,
kerf11,
kief11,
fief10,
fife10,
five10,
riff10,
keen8,
keir8,
kern8,
kier8,
kine8,
kirn8,
knee8,
reek8,
rink8,
even7,
ever7,
fere7,
fern7,
fine7,
fire7,
firn7,
free7,
neif7,
neve7,
nevi7,
reef7,
reif7,
rife7,
rive7,
veer7,
vein7,
vier7,
vine7,
erne4,
rein4,
3 letter words:
kef10,
kif10,
eff9,
iff9,
eek7,
eke7,
ink7,
irk7,
ken7,
kin7,
kir7,
eve6,
fee6,
fen6,
fer6,
fie6,
fin6,
fir6,
ref6,
rev6,
rif6,
vee6,
vie6,
ere3,
ern3,
ire3,
nee3,
ree3,
rei3,
rin3,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
er2,
in2,
ne2,
re2,