1A male eloper; a heroic or daring male lover. Frequently in "young Lochinvar".
2Australian informal, rare A man who abducts an Australian Aboriginal woman.
Early 19th century; earliest use found in Fatherless Fanny. From Lochinvar, the name of the protagonist of a ballad in Sir Walter Scott's Marmion who elopes with a bride on her wedding day from the name of Lochinvar, Galloway (Scottish Gaelic Loch an Bharr, lit. ‘lake of the height’), the seat of the Gordon family, of whom the protagonist is a member.