Onisim is a Russian given name, derived from the Church Slavonic form of the Greek name Onesimus. It is the Russian equivalent of Onesimus, meaning "beneficial" or "profitable."Etymology and OriginThe name Onisim ultimately traces back to the Greek name Onesimos, which meant "beneficial" or "profitable." This was a common name in the ancient Greek world, notably borne by a slave who appears in the New Testament. According to the biblical Epistle to Philemon, Onesimus was a slave of Philemon who escaped and met Paul while in prison. Paul converted him and sent him back to Philemon with a letter, urging that he be received as a brother. This story contributed to the name's adoption among early Christians.Historical and Cultural ContextIn East Slavic tradition, Onisim was carried over from Byzantine Christian practice, where the name was venerated through Saint Onesimus. The Russian Orthodox Church particularly honors Onisim of the Caves, a Kyiv saint from the 12th century. The name also appears in the patronymic surname Onisimov (or Anisimov).Notable bearers in modern times include Onisim Bron (1895–1975), a Soviet conductor; and Onisim Kler (the Russian name of Onésime Clerc, 1845–1920), a Swiss-born Russian naturalist. The Romanian variant Onisim is also used as a surname.The name has a variant in other East Slavic languages: Ukrainian Anisim. While related names like Onesimus (Biblical Latin) and Onésime (French) exist, Onisim remains primarily associated with Russian and Romanian usage.Meaning: "beneficial," "profitable"Origin: Greek, through Church SlavonicType: Given name (masculine)Usage: Russian, also Romanian