Berthelot Family History
Berthelot Name Meaning
French and Breton:: from a French pet form of any of various personal names based on the ancient Germanic element berht ‘bright famous’ for example Bert(h)aud (see Berteau ). possibly also from a French pet form of the personal name Barthélemy (see Bartholomew ) or its variant Berthélemy. In France the surname Berthelot is most common in Brittany.
Source: Dictionary of American Family Names 2nd edition, 2022