←
Proto-Celtic *ad- (inherited)
←
Proto-Indo-European *h₂éd (derived)
→
Scottish Gaelic abaich (mention)
→
Scottish Gaelic tairg (affix)
→
Middle Irish abaid (mention)
→
Old Irish in- (mention)
→
Old Irish adora (affix)
→
Old Irish ammus (affix)
→
Old Irish adbar (prefix)
→
Old Irish adfét (affix)
→
Old Irish adfét (mention)
→
Old Irish adrig (affix)
→
Old Irish adnoí (affix)