8 letter words:
appendix20,
6 letter words:
expand16,
append11,
napped11,
nipped11,
nappie10,
pained9,
5 letter words:
index13,
nixed13,
xenia12,
piped10,
nappe9,
paned8,
pined8,
4 letter words:
apex13,
axed12,
nixe11,
pipe8,
aped7,
padi7,
paid7,
pend7,
pied7,
nape6,
neap6,
nipa6,
pain6,
pane6,
pean6,
pein6,
pian6,
pina6,
pine6,
aide5,
dean5,
deni5,
dine5,
idea5,
nide5,
3 letter words:
pax12,
pix12,
dex11,
axe10,
nix10,
app7,
pap7,
pep7,
pip7,
dap6,
dip6,
pad6,
ped6,
ape5,
nap5,
nip5,
pan5,
pea5,
pen5,
pia5,
pie5,
pin5,
aid4,
and4,
dan4,
den4,
die4,
din4,
end4,
ain3,
ane3,
ani3,
nae3,
2 letter words:
ax9,
ex9,
xi9,
pa4,
pe4,
pi4,
ad3,
de3,
ed3,
id3,
ae2,
ai2,
an2,
en2,
in2,
na2,
ne2,