6 letter words:
kernel10,
5 letter words:
kerel9,
kerne9,
kneel9,
4 letter words:
keel8,
keen8,
kern8,
knee8,
leek8,
leke8,
nerk8,
reek8,
reke8,
renk8,
erne4,
leer4,
lere4,
reel4,
reen4,
3 letter words:
eek7,
eke7,
elk7,
erk7,
ken7,
lek7,
nek7,
eel3,
een3,
ene3,
ere3,
ern3,
lee3,
nee3,
ree3,
ren3,
2 letter words:
ee2,
el2,
en2,
er2,
ne2,
re2,