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.1205; "woman whose manners and sensibilities befit her for high rank in society" is from 1861 (
ladylike in this sense is from 1586). Meaning "woman as an object of chivalrous love" is from c.1374. 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.