surname of Joseph the Levite of Cyprus (Acts iv:36), literally "son of exhortation," from Aramaic bar "son" + nabha "prophecy, exhortation." St. Barnabas' Day (colloquially St. Barnaby), June 11, in the Old Style calendar was reckoned the longest day of the year.[Barnabas etymology, Barnabas origin, 英语词源]