Nilus is the Latinized form of the Greek name Neilos, which is also the Greek name for the Nile River. The etymology of Neilos is uncertain, but it may derive from a Semitic root meaning ">river". This connection to the Nile gives Nilus a strong geographical and mythological significance, as in Greek mythology Neilos was the god of the Nile River, son of Okeanos (the primeval ocean) and Tethys (a Titaness). Etymology Nilus enters European onomastics via Latin adoption of the Greek Neilos. The Greek name itself has been connected to the Nile River, with possible Semitic origins from a word meaning "river valley" or simply "river". In Latin, Nilus became the standard name for the Nile, and it was also used as a personal name during the Roman and Byzantine periods. Notable Bearers Several notable saints bear the name Nilus. Saint Nilus of Sinai was a 5th-century ascetic and disciple of John Chrysostom who wrote on Christian spirituality. Another is Saint Nilus the Younger (c. 910–1005), a Byzantine monk who founded the Monastery of Saint Nilus at Grottaferrata near Rome after fleeing Islamic persecution. The name continues to be used in Eastern Orthodox traditions. Language and Culture Nilus is primarily found in historical contexts and within religious traditions. In Spanish, the variant Nilo is used, derived from the Latin form. The obsolete spelling in English as "Nilus" of the river Nile reflects the direct borrowing of the Latin name. Meaning: River Nile, possibly Semitic for "river". Origin: Latinized form of Greek Neilos. Type: Given name, also a river name and mythological figure. Usage regions: Ancient Rome, Early Christianity.