6 letter words:
druids8,
siddur8,
5 letter words:
druid7,
rudds7,
ursid6,
4 letter words:
duds6,
rudd6,
sudd6,
rids5,
ruds5,
suid5,
surd5,
urds5,
3 letter words:
did5,
dud5,
dis4,
dui4,
ids4,
rid4,
rud4,
sud4,
uds4,
urd4,
sir3,
sri3,
sui3,
sur3,
2 letter words:
di3,
id3,
is2,
si2,
ur2,
us2,
