Margaid is the Manx form of Margaret, a name derived from Latin Margarita, which came from Greek μαργαρίτης (margarites), meaning "pearl," ultimately borrowed from an Indo-Iranian language. While Margaret has been widely used in the Christian world, its Manx variant 'Margaid' specifically represents the Gaelic adaptation of the name in the Isle of Man, where Manx Gaelic was historically spoken.