5 letter words:
cyber12,
beery10,
rebec9,
4 letter words:
byre9,
eery7,
eyen7,
eyer7,
eyne7,
eyre7,
been6,
beer6,
bene6,
bree6,
bren6,
cere6,
erne4,
3 letter words:
bey8,
bye8,
cry8,
eye6,
rye6,
yen6,
bee5,
ben5,
cee5,
neb5,
reb5,
rec5,
ere3,
ern3,
nee3,
ree3,
2 letter words:
by7,
ye5,
be4,
en2,
er2,
ne2,
re2,