5 letter words:
kerne9,
4 letter words:
zerk17,
keen8,
kern8,
knee8,
nerk8,
reek8,
reke8,
renk8,
erne4,
reen4,
3 letter words:
zek16,
rez12,
zee12,
eek7,
eke7,
erk7,
ken7,
nek7,
een3,
ene3,
ere3,
ern3,
nee3,
ree3,
ren3,
2 letter words:
ee2,
en2,
er2,
ne2,
re2,