Caelio
Caelio is a Latin form of Caelius, meaning “Caelius, name of a Roman clan (e.g. M. Caelius Rufus, Cicero's client); the Caelian hill”. It is the ablative singular masculine noun or dative singular masculine noun.
Found 62 times in the Latin texts on Socratos.
Where it is used
Cicero, Pro L. Flacco 100: … sis obsistent Massilienses, Rhodii, Lacedaemonii, Athenienses, cuncta Achaia, Thessalia, Boeotia; Septimio et Caelio testibus P. Servilius et Q. Metellus huius pudoris integritatisque testes repugnabunt; Asiaticae iuris dictio …
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.