Proto-Basque: *hac, *be=hac
Meaning: 1 finger 2 fingernail 3 toe 4 hoof 5 thumb 6 inch 7 paw
Bizkaian: atz 1, 6; beatz, biatz 3, atzazal, atzazkol, atzoskol 2
Gipuzkoan: azkazal, azkazkal 4, beatz, biatz 1, 5, beatzal, beatzazal 2
High Navarrese: azkazal 4, beatz, biatz 1, 5
Low Navarrese: hatz 7, behatz 1, 5, (Aldude) bihatz 1, 5
Salazarese: atz 7
Lapurdian: hatz 7, 8, behatz 2, (Ainhoa) behatz 2, 5
Baztanese: beatz-andi 5
Zuberoan: hatz 7, behatz 1, 5, ehi-behatz 5, azazkǘlü, azüzkülü 2
Roncalese: atz 7
Comments: Only some of the many derivates of this prolific root are listed. The homonyms *hac 'track, footprint' and *hac 'breed, race' are separate etyma: see *hace 'back part' and *hasi 'grow', respectively.
