←
Proto-Celtic *ɸare (inherited)
←
Ancient Greek παρά (cognate)
←
Proto-Indo-European *pr̥H- (inherited)
←
Proto-Indo-European *n̥serōm (inherited)
←
Proto-Indo-European *nos (mention)
→
Scottish Gaelic ar (inherited)
→
Scottish Gaelic oir (inherited)
→
Old Irish air (mention)
→
Old Irish ar- (mention)
→
Old Irish urusa (mention)