Kerl
fellow
bloke
dude
guy
chap
bruce
Kerlchen
buster
Kerf
insect
Kern
nucleus
core
kernel
-erl
-ling
Erl
tang
Perl
Perl
Kerbe
jag
nick
Kerne
churn
Kerub
cherub
Iker
Iker
Kerala
Kerala
Kerbel
chervil
Kernel
kernel
Kerry
Kerry
Kerve
birthmouth
Kerze
candle
candlestick
spark plug
Berle
water parsnip
Erle
alder
Perle
pearl
bead