Of New Testament origin: from a post-classical Latin personal name, a feminine diminutive of the Roman family name Priscus ‘ancient’. Priscilla was the name of a woman with whom St Paul stayed at Corinth (Acts 18:3), referred to elsewhere as Prisca. The name was in regular use in the late 16th century and enjoyed a modest vogue in the 19th century.
Scottish: Anglicized form of Gaelic Mac Coluim ‘son of Colum’, a personal name derived from Latin columba ‘dove’ (now often found as Calum). This was the name of the 6thcentury missionary known in English as St. Columba (521–97), who converted the Picts to Christianity and founded an influential monastery on the island of Iona.