Martha is a feminine given name. Patti, Patsy, and Patty were in use in Colonial America as English rhyming diminutives of the diminutive Mattie. Molly has been used as a diminutive of Martha since the 1700s.
Martha from the Isabella Breviary, 1497
Patsy is a given name often used as a diminutive of the feminine given name Patricia or sometimes the masculine name Patrick, or occasionally other names containing the syllable "Pat". Among Italian Americans, it is often used as a pet name for Pasquale.
Country western singer Patsy Cline (1932-1963).
Patsy Custis (1756-1773), the daughter of Martha Washington and stepdaughter of George Washington.
Princess Patricia of Connaught (1886-1974), pictured with wounded Canadian soldiers in 1917. Her nickname was Patsy.