4 letter words:
kuzu17,
zerk17,
geck11,
guck11,
cuke10,
reck10,
ruck10,
kuru8,
crue6,
cure6,
ecru6,
grue5,
guru5,
urge5,
3 letter words:
zek16,
cuz14,
rez12,
keg8,
erk7,
euk7,
kue7,
uke7,
cru5,
cue5,
cur5,
ecu5,
rec5,
ruc5,
erg4,
gue4,
gur4,
reg4,
rug4,
rue3,
ure3,
2 letter words:
gu3,
ug3,
er2,
re2,
ur2,