Graium
Graium is a Latin form of Graius, meaning “Greek; (Graii) the Greeks”. It is the accusative singular masculine noun or genitive plural neuter adjective or genitive plural masculine adjective or genitive plural masculine noun.
Found 38 times in the Latin texts on Socratos.
Where it is used
Vergil, Aeneid 4.228: promisit, Graiumque ideo bis vindicat armis;
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.