←
Middle High German arl (cognate)
←
Proto-Balto-Slavic *arklas (mention)
←
Proto-Balto-Slavic *arkla (mention)
←
Proto-Balto-Slavic *árˀtla (mention)
←
Proto-Balto-Slavic *artra (mention)
←
Proto-Indo-European *h₂erh₃- (mention)
←
Proto-Indo-European *h₁er- (mention)
←
Proto-Indo-European *-trom (mention)
←
Latvian arkls (mention)
→
Latvian arkls (mention)