8 letter words:
happened16,
6 letter words:
happed14,
happen13,
daphne12,
heaped12,
append11,
napped11,
peahen11,
neaped9,
peaned9,
5 letter words:
phene10,
nappe9,
naped8,
paned8,
pened8,
eaned6,
4 letter words:
epha9,
heap9,
ahed8,
ehed8,
hade8,
haed8,
hand8,
head8,
heed8,
hend8,
pape8,
peep8,
aped7,
deep7,
haen7,
pand7,
peed7,
pend7,
nape6,
neap6,
neep6,
pane6,
pean6,
peen6,
pene6,
dean5,
deen5,
dene5,
need5,
3 letter words:
hap8,
hep8,
pah8,
peh8,
app7,
dah7,
edh7,
had7,
pap7,
pep7,
dap6,
hae6,
han6,
hen6,
nah6,
pad6,
ped6,
ape5,
nap5,
nep5,
pan5,
pea5,
pee5,
pen5,
and4,
dae4,
dan4,
dee4,
den4,
end4,
ned4,
ane3,
ean3,
een3,
ene3,
nae3,
nee3,
2 letter words:
ah5,
eh5,
ha5,
he5,
pa4,
pe4,
ad3,
da3,
de3,
ed3,
ae2,
an2,
ea2,
ee2,
en2,
na2,
ne2,