Proto Family History
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Proto Name Meaning
Italian: from Greek protos ‘first’, hence a name bestowed on the first born (male) child, or in some cases possibly a short form of an occupational or status name formed with this element, such as Protonotaro, literally ‘first notary’. Altered spelling of French Proteau or Protot, from a pet form of Protasius.
Source: Dictionary of American Family Names ©2013, Oxford University Press