Irish cos

← Proto-Celtic *koxsā (inherited)

← Welsh coes (cognate)

← Proto-Indo-European *koḱs- (inherited)

← Latin coxa (cognate)

← Old Irish cos (inherited)

→ Irish cosán (suffix)

→ Irish coisí (affix)

→ Irish crágchos (prefix)

→ Irish gearrchosach (affix)

→ Irish coiscéim (compound)