6 letter words:
acarus8,
5 letter words:
arcus7,
sacra7,
scaur7,
auras5,
4 letter words:
arcs6,
cars6,
casa6,
crus6,
curs6,
scar6,
aura4,
sura4,
ursa4,
3 letter words:
arc5,
car5,
cru5,
cur5,
sac5,
aas3,
ars3,
ras3,
sau3,
2 letter words:
aa2,
ar2,
as2,
us2,