lady Look up lady at Dictionary.com
M.E. lafdi, lavede, ladi, from O.E. hlæfdige "mistress of a household, wife of a lord," lit. "one who kneads bread," from hlaf "bread" (see loaf) + -dige "maid," related to dæge "maker of dough" (see dey (1); also compare lord). Not found outside Eng. except where borrowed from it. Sense of "woman of superior position in society" is c.1200; "woman whose manners and sensibilities befit her for high rank in society" is from 1861 (ladylike in this sense is from 1580s). Meaning "woman as an object of chivalrous love" is from late 14c. Used commonly as an address to any woman since 1890s. Applied in O.E. to the Holy Virgin, hence many extended usages in plant names, etc., from gen. sing. hlæfdigan, which in M.E. merged with the nom., so that lady- often represents (Our) Lady's; e.g. ladybug (1699; cf. Ger. cognate Marienkäfer) which now is called ladybird beetle (1704) in Britain, through aversion to the word bug, which there has overtones of sodomy. Ladies' man first recorded 1784.