noun (plural Mss. or Mses.) Etymology: probably blend of Miss and Mrs. Date: 1949 — used instead of Miss or Mrs. (as when the marital status of a woman is unknown or irrelevant)
MS.
Meaning of MS. in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012