9 letter words:
dynorphin18,
7 letter words:
hypnoid16,
nondrip10,
6 letter words:
pinyon11,
5 letter words:
phony13,
hydro12,
hyoid12,
hinny11,
horny11,
pyoid11,
pinny10,
porny10,
rindy9,
irony8,
poind8,
rhino8,
orpin7,
pinon7,
prion7,
4 letter words:
hypo12,
yodh11,
dopy10,
phon9,
piny9,
pony9,
pyin9,
pyro9,
ropy9,
dory8,
hind8,
rynd8,
yird8,
yond8,
dorp7,
drip7,
drop7,
horn7,
pond7,
prod7,
yoni7,
pion6,
pirn6,
porn6,
dino5,
nodi5,
rind5,
inro4,
iron4,
noir4,
nori4,
3 letter words:
hyp11,
hoy9,
hip8,
hop8,
phi8,
poh8,
pry8,
yip8,
dry7,
hid7,
hod7,
yid7,
yod7,
dip6,
hin6,
hon6,
noh6,
pod6,
rho6,
yin6,
yon6,
nip5,
pin5,
poi5,
pro5,
rip5,
din4,
don4,
dor4,
nod4,
rid4,
rod4,
inn3,
ion3,
nor3,
rin3,
2 letter words:
hi5,
ho5,
oh5,
oy5,
yo5,
op4,
pi4,
do3,
id3,
od3,
in2,
no2,
oi2,
on2,
or2,