Bachelor

bach′el-or, n. a young knight who followed the banner of another, as being too young to display his own: an unmarried man: one who has taken his first degree at a university.— ns. Bach′elorhood , Bach′elorship ; Bach′elorism , habit of a bachelor; Bach′elor's-but′ton , the popular name of the double-flowered yellow or white varieties of buttercup.— Knight bachelor , title of one who has been knighted, but not attached to any special order. [O. Fr. bacheler . Ety. disputed; acc. to Brachet from Low L. bacca lari us , a farm-servant, orig. a cowherd, from bacca , Low L. for vacca , a cow.]