6 letter words:
refuge10,
5 letter words:
grufe9,
4 letter words:
frug8,
feer7,
fere7,
free7,
reef7,
eger5,
euge5,
gere5,
gree5,
grue5,
urge5,
3 letter words:
feg7,
fug7,
erf6,
fee6,
fer6,
feu6,
fur6,
ref6,
erg4,
gee4,
gue4,
gur4,
reg4,
rug4,
ere3,
ree3,
rue3,
ure3,
2 letter words:
ef5,
fe5,
gu3,
ug3,
ee2,
er2,
re2,
ur2,