Mademoiselle

google

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French, from ma ‘my’ + demoiselle ‘damsel’.

wiktionary

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Borrowed from French mademoiselle.

etymonline

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mademoiselle

mid-15c., madamoisell, title applied to an unmarried Frenchwoman, formerly in France the title of any woman not of the nobility, from French mademoiselle (12c.), from a compound of ma dameisele (see damsel), literally "young mistress." Contracted form ma'amselle is attested from 1794, mamsell by 1842.