Greco
[ˈɡrɛkoʊ]Meaning
from Italian greco (Latin Graecus), an ethnonym meaning "Greek"
Background Story
Greco is the Italian form of a word that served as an ethnonym for someone of Greek ethnicity and a demonym for someone born in Greece, a sense that in the medieval era was extended to citizens of the Byzantine Empire. It is the masculine counterpart of the feminine forms Greca and Grecia. In modern use it is most common in Sardinia, particularly the province of Cagliari, and also appears in Tuscany and Emilia-Romagna. A user-submitted entry records it as a rare masculine given name.
Temperament

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