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Last name origins & meanings:

  1. Greek: from a term of address, barbas, indicating either respect for an older man or friendly familiarity, from Italian barba ‘uncle’, ‘man with a beard’ (see Barba). It may also be a reduced form of surnames beginning with Barba, for example Barbagiannis ‘Uncle John’.
  2. Portuguese and Spanish: from the plural of barba ‘bearded’ (Latin barba ‘beard’), a nickname for a bearded man.
  3. Hungarian (Barbás): see Barabas.