Marjy \m(a)-rjy, mar-jy\ as a girl's name is a variant of Margery (French) and Marjorie (English). See for meaning of Marjy.
The baby name Marjy sounds like Marji, Marjey, Margy, Marje, Marja and Marjo. Other similar baby names are Marcy, Marty and Mary.