gruss[6], gurus[6],
giri[5], giss[5], urig[5], grus[5], guss[5], guru[5], iris[4], riss[4], sirs[4], russ[4], usus[4],
cis[6], sic[6], gis[4], gur[4], sir[3], iss[3], rus[3], sur[3], urs[3],
si[2], ui[2], ur[2],