6 letter words:
infeft12,
5 letter words:
knife12,
feint8,
fient8,
4 letter words:
kiff14,
fike11,
fink11,
kief11,
fief10,
fife10,
niff10,
teff10,
tiff10,
kent8,
kine8,
kite8,
knit8,
tike8,
tink8,
feni7,
fent7,
fine7,
neif7,
nief7,
nife7,
nite4,
tine4,
3 letter words:
kef10,
kif10,
eff9,
iff9,
eik7,
ink7,
ken7,
ket7,
kin7,
kit7,
nek7,
eft6,
fen6,
fet6,
fie6,
fin6,
fit6,
nef6,
tef6,
net3,
nie3,
nit3,
ten3,
tie3,
tin3,
2 letter words:
ki6,
ef5,
fe5,
if5,
en2,
et2,
in2,
it2,
ne2,
te2,
ti2,