6 letter words:
hatter9,
rather9,
threat9,
ratter6,
tarter6,
5 letter words:
earth8,
hater8,
heart8,
rathe8,
theta8,
rater5,
tarre5,
tater5,
terra5,
tetra5,
treat5,
4 letter words:
eath7,
haet7,
hare7,
hart7,
hate7,
hear7,
heat7,
rath7,
rhea7,
tahr7,
teth7,
thae7,
that7,
rare4,
rate4,
rear4,
tare4,
tart4,
tate4,
tear4,
teat4,
tret4,
3 letter words:
eth6,
hae6,
hat6,
her6,
het6,
rah6,
the6,
are3,
art3,
ate3,
att3,
ear3,
eat3,
era3,
err3,
eta3,
rat3,
ret3,
tae3,
tar3,
tat3,
tea3,
tet3,
2 letter words:
ah5,
eh5,
ha5,
he5,
ae2,
ar2,
at2,
er2,
et2,
re2,
ta2,