7 letter words:
haptene12,
heptane12,
phenate12,
6 letter words:
hapten11,
peahen11,
ethane9,
nepeta8,
5 letter words:
neath8,
thane8,
etape7,
paten7,
eaten5,
enate5,
4 letter words:
epha9,
heap9,
path9,
phat9,
eath7,
haen7,
haet7,
hant7,
hate7,
heat7,
hent7,
thae7,
than7,
thee7,
then7,
nape6,
neap6,
neep6,
pane6,
pant6,
pate6,
pean6,
peat6,
peen6,
pent6,
tape6,
tepa6,
ante4,
etna4,
neat4,
teen4,
3 letter words:
hap8,
hep8,
pah8,
peh8,
pht8,
eth6,
hae6,
hat6,
hen6,
het6,
nah6,
nth6,
the6,
ape5,
apt5,
nap5,
pan5,
pat5,
pea5,
pee5,
pen5,
pet5,
tap5,
ane3,
ant3,
ate3,
eat3,
eta3,
nae3,
nee3,
net3,
tae3,
tan3,
tea3,
tee3,
ten3,
2 letter words:
ah5,
eh5,
ha5,
he5,
pa4,
pe4,
ae2,
an2,
at2,
en2,
et2,
na2,
ne2,
ta2,