←
Proto-Celtic *koros (derived)
←
Old Church Slavonic лѣнъ (cognate)
←
Old High German scerdo (cognate)
←
Proto-Indo-European *kerd- (derived)
←
Proto-Indo-European *(s)ker- (derived)
←
Proto-Indo-European *kerH- (mention)
←
Proto-Indo-European *(s)ker- (mention)
←
Proto-Indo-European *leh₁- (derived)
←
Old Irish cor (mention)
←
Old Irish ro·lá (mention)
←
Old Irish ro- (mention)
←
Middle Welsh kerðet (cognate)