6 letter words:
griffe13,
5 letter words:
griff12,
fifer11,
fiver11,
giver9,
grief9,
firer8,
frier8,
rifer8,
river8,
rerig6,
4 letter words:
fief10,
fife10,
five10,
riff10,
frig8,
give8,
fire7,
reif7,
rife7,
rive7,
vier7,
3 letter words:
eff9,
iff9,
fig7,
veg7,
vig7,
fer6,
fie6,
fir6,
ref6,
rev6,
rif6,
vie6,
erg4,
gie4,
reg4,
rig4,
err3,
ire3,
rei3,
2 letter words:
ef5,
fe5,
if5,
er2,
re2,