In the Celtic origin, Biddy means "Resolute; Strength; Saint"
In the Gaelic origin, Biddy means "Biddy \b(id)-dy\ as a girl's name. Pet form of Bride or Bridget (Gaelic) "exalted one". Seldom used outside Ireland nowadays, as the phrase "an old biddy" has come to denote a tiresome old woman.
Biddy has 2 variant forms: Biddie and Bidon.
For more information, see also the related name Bedelia.
Baby names that sound like Biddy are Bitya, Beda, Betty, Bitta and Bit.
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In the Irish origin, Biddy means "Protective"
