←
English shale (cognate)
←
Proto-Indo-European *h₂élis (mention)
←
Proto-Indo-European *skelo (derived)
←
Lithuanian skalà (cognate)
←
Serbo-Croatian jelha (cognate)
←
Proto-Albanian *skalā (inherited)
→
English alder (cognate)
→
English shale (cognate)
→
Old English alor (cognate)