Gaio
Gaio is a Latin form of Gaius, meaning “Gaius (Roman first name, abbreviated C.)”. It is the ablative singular masculine noun or dative singular masculine noun.
Found 60 times in the Latin texts on Socratos.
Where it is used
Caesar, De Bello Gallico 5.17.2: Sed meridie, cum Caesar pabulandi causa tres legiones atque omnem equitatum cum Gaio Trebonio legato misisset, repente ex omnibus partibus ad pabulatores advolaverunt, sic uti ab signis legionibusque non absisterent.
All forms of Gaius (declension table)
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.