6 letter words:
sperms10,
5 letter words:
perms9,
prems9,
sperm9,
press7,
4 letter words:
perm8,
prem8,
mess6,
rems6,
reps6,
seps6,
sers4,
3 letter words:
ems5,
mes5,
per5,
pes5,
pre5,
rem5,
rep5,
ers3,
ess3,
res3,
ser3,
2 letter words:
em4,
me4,
pe4,
er2,
es2,
re2,