5 letter words:
churl10,
lurch10,
ruche10,
cruel7,
lucre7,
ulcer7,
4 letter words:
chef12,
clef9,
curf9,
lech9,
flue7,
fuel7,
furl7,
herl7,
hurl7,
lehr7,
clue6,
cure6,
curl6,
ecru6,
luce6,
lure4,
rule4,
3 letter words:
feh9,
elf6,
fer6,
feu6,
flu6,
fur6,
her6,
hue6,
ref6,
cel5,
cru5,
cue5,
cur5,
ecu5,
rec5,
leu3,
rue3,
2 letter words:
ef5,
eh5,
fe5,
he5,
uh5,
el2,
er2,
re2,