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1.
Southern dialect for Lordy. Use to express astonishment
Lawsy, that was a hard task.

"As she drove along the winding road to his hunting lodge, she had a premonition that he might be dead, and if so, lawsy-mercy, all of her plans would go up in smoke ... well, unless she talked to his heirs." From: Shiver
by stottle November 14, 2013