Alario Family History
Alario Surname Meaning
Italian: from a vernacular form of the personal name Ilario from Latin Hilarius (see Hillary).
Italian (Sicily): probably a status name from dialect alariu ‘herald’.
Spanish: probably from the Latin personal name Hilarius (compare 1 above).
Catalan (Alarió): unexplained.
Source: Dictionary of American Family Names 2nd edition, 2022
