7 letter words:
erecter9,
reerect9,
6 letter words:
curter8,
recure8,
retree6,
ureter6,
5 letter words:
cruet7,
curer7,
curet7,
cuter7,
erect7,
eruct7,
recur7,
recut7,
terce7,
truce7,
truer5,
4 letter words:
cere6,
cert6,
cete6,
cree6,
crue6,
cure6,
curr6,
curt6,
cute6,
ecru6,
rete4,
ruer4,
teer4,
tree4,
true4,
3 letter words:
cee5,
cru5,
cue5,
cur5,
cut5,
ecu5,
rec5,
ruc5,
tec5,
ere3,
err3,
ree3,
ret3,
rue3,
rut3,
tee3,
ure3,
ute3,
2 letter words:
ee2,
er2,
et2,
re2,
te2,
ur2,
ut2,