5 letter words:
ering6,
grein6,
niger6,
reign6,
renig6,
4 letter words:
gien5,
girn5,
gren5,
grin5,
ring5,
rein4,
rine4,
3 letter words:
eng4,
erg4,
gen4,
gie4,
gin4,
neg4,
reg4,
rig4,
ern3,
ire3,
nie3,
rei3,
ren3,
rin3,
2 letter words:
gi3,
en2,
er2,
in2,
ne2,
re2,