Betto m. A hypocoristic of any of various names containing Old High German beraht, Old Saxon berht 'bright' from Proto-Germanic *berhtaz.

Austria

Latin

● c1030 Petto (nom) UrkStyria 48

◑ 776 Pezzila (nom) FRA-XXXL 4; c1050 Pezili (nom) UrkStyria 58; c1066 Pezili (nom) ibid. 68; c1100 Pecelin (nom) ibid. 92

France

Latin

● 695 Bettonis (gen) DCEL-2 Add. VII; 699 Bettuni (abl) ibid. Add. X; 700 Betune (abl) ibid. XIV; 814 Beto (nom) StVdM-II G1; 1038 Beto (nom) ibid. 719; 1060 Beto (nom) ibid. 730

◑ 697 Bettolinus (nom) DCEL-2 Add. IX; 699 Bettolinus (nom) Chart7th p. 570; 780 Bettholinus (nom) CartNoaille I

Germany

Latin

◑ c1070 Pecili (nom) UrkStyria 72

Italy

Latin

● 827 Petto (nom) FRA-XXXL 11; 828 Petto (nom) ibid. 12; 1265x1339 Betti (gen) BBC-Berg 175; 1366 Betti (gen) Livi 3

◑ 827 Pezzi (nom) FRA-XXXL 11; 1265x1339 Betini (gen) BBC-Berg 139