Proto-Slavic *kǫsati

→ Belarusian кусаць (inherited)

→ Bulgarian късам (inherited)

→ Czech kousat (inherited)

→ Old Church Slavonic кѫсати (inherited)

→ Lower Sorbian kusaś (inherited)

→ Lithuanian kąsti (cognate)

→ Macedonian каса (inherited)

→ Old East Slavic кусати (inherited)

→ Polish kąsać (inherited)

→ Russian кус (mention)

→ Russian кусать (inherited)

→ Serbo-Croatian kušati (mention)

→ Serbo-Croatian кушати (mention)

→ Ukrainian кусати (inherited)