9 letter words:
unhappier16,
8 letter words:
unhipper15,
7 letter words:
happier14,
heparin12,
nappier11,
unpaper11,
6 letter words:
happen13,
hippen13,
hipper13,
upheap13,
harpin11,
rupiah11,
napper10,
nappie10,
nipper10,
parpen10,
pauper10,
prenup10,
purpie10,
rappen10,
hernia9,
unhair9,
panier8,
pruina8,
pruine8,
punier8,
purine8,
rapine8,
unripe8,
5 letter words:
hepar10,
phare10,
prahu10,
raphe10,
unhip10,
appui9,
nappe9,
paper9,
pinup9,
piper9,
pupae9,
rappe9,
upper9,
aruhe8,
hinau8,
rahui8,
rhine8,
arpen7,
paire7,
pareu7,
perai7,
prune7,
purin7,
repin7,
ripen7,
rupia7,
unrip7,
upran7,
aurei5,
inure5,
nairu5,
raine5,
uraei5,
urena5,
urine5,
4 letter words:
epha9,
hapu9,
harp9,
heap9,
pruh9,
puha9,
pape8,
parp8,
perp8,
pipa8,
pipe8,
prep8,
pupa8,
repp8,
ripp8,
haen7,
hain7,
hair7,
hare7,
harn7,
hear7,
heir7,
hern7,
hire7,
huer7,
huia7,
rhea7,
aper6,
nape6,
neap6,
nipa6,
pain6,
pair6,
pane6,
pare6,
pean6,
pear6,
pein6,
peni6,
peri6,
pern6,
pian6,
pier6,
pina6,
pine6,
pirn6,
prau6,
puer6,
puir6,
puna6,
pure6,
puri6,
rape6,
reap6,
ripe6,
aine4,
airn4,
aune4,
earn4,
eina4,
iure4,
nare4,
near4,
rain4,
rani4,
raun4,
rean4,
rein4,
rine4,
ruin4,
rune4,
unai4,
urea4,
3 letter words:
hap8,
hep8,
hip8,
hup8,
pah8,
peh8,
phi8,
puh8,
app7,
pap7,
pep7,
pip7,
pup7,
ahi6,
hae6,
han6,
hen6,
her6,
hie6,
hin6,
hue6,
hui6,
hun6,
nah6,
rah6,
reh6,
ape5,
nap5,
nep5,
nip5,
pan5,
par5,
pea5,
pen5,
per5,
pia5,
pie5,
pin5,
pir5,
piu5,
pre5,
pun5,
pur5,
rap5,
rep5,
rip5,
urp5,
ain3,
air3,
ane3,
ani3,
are3,
aue3,
ean3,
ear3,
eau3,
era3,
ern3,
ire3,
nae3,
nie3,
nur3,
rai3,
ran3,
rei3,
ren3,
ria3,
rin3,
rue3,
run3,
uni3,
ure3,
urn3,
2 letter words:
ah5,
eh5,
ha5,
he5,
hi5,
uh5,
pa4,
pe4,
pi4,
up4,
ae2,
ai2,
an2,
ar2,
ea2,
en2,
er2,
in2,
na2,
ne2,
nu2,
re2,
un2,
ur2,
