Definition: The Greek word for "Agostino" appears to be a variation or prefix, not a standard English term. The original Latin word used as the root for "Agostino" is "agostinus," which can have multiple meanings in Latin: 1.

Agostinus

- This is often seen as the first name of a person named Agostino (with the suffix "-ius"). It was initially used to denote someone who had served as the bishop or archbishop of Rome. 2.

Antigonius

- Another Latin root, it is also used for this purpose and can refer to a bishop like Antigonius of Rome. 3.

Agostino (of Rome)

- This name may be an occupational title. It was used by the Roman Emperor Gaius Julius Caesar in his travels as the "agostinus" of Rome. 4.

Cleomenes Agostinos

- In Greek mythology, a character named Cleomenes who is also known as Agostino is the father of Agamemnon, the hero of Homer's epic poem "The Iliad." 5.

Clemens Agostinus

- Another name given to him by his father. 6.

Pendennis Agostinos

- This was a knight and the grandfather of William Pendennis of Wales. In summary, it is possible that the Greek word for 'Agostino' is not part of the Latin vocabulary standard but may have been derived from the Roman context or meaning, or could be part of a different Latin term. Without additional context, it's challenging to provide an exact definition.

Agostino