Irish aill

← Proto-Celtic *ɸallo- (inherited)

← Proto-Indo-European *pels- (derived)

← Old Irish all (inherited)

→ English fell (cognate)

→ English Pella (cognate)

→ Irish ailt (link)

→ Irish faill (mention)

→ Irish ailleadóir (affix)

→ Irish alltrach (mention)