or MSS, Mss, mss.
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Word Origin and History for mss.
abbreviation of Latin manu scriptum (see manuscript); the plural is MSS, after the custom in Modern Latin.
Online Etymology Dictionary, © 2010 Douglas Harper
A title used before a woman's name, pronounced “Miz” and corresponding to Mr. before a man's.
Feminists have urged the use of Ms. because, unlike Miss or Mrs., it does not identify a woman by her marital status. (See feminism.)
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.