←
Proto-Balto-Slavic *árˀtla (inherited)
←
Proto-Balto-Slavic - (mention)
←
Proto-Balto-Slavic *arˀ- (mention)
←
Proto-Indo-European *h₂erh₃- (mention)
←
Lithuanian arti (suffix)
←
Lithuanian klas (suffix)
←
Latvian arkls (cognate)
←
Old Norse arðr (cognate)
←
Proto-Slavic *ordlo (cognate)
←
Old Armenian արաւր (cognate)
→
Latvian arkls (cognate)