Eleven (&euptack_;l&ebreve_;v'n), a. [OE. enleven, AS. endleofan, endlufon, for nleofan; akin to LG. eleve, ölwe, ölwen, D. elf, G. elf, eilf, OHG. einlif, Icel. ellifu, Sw. elfva, Dan. elleve, Goth. ainlif, cf. Lith. vënolika; and fr. the root of E. one + (prob.) a root signifying “to be left over, remain,” appearing in E. loan, or perh. in leave, v. t., life. See One, and cf. Twelve.] Ten and one added; as, eleven men.
[1913 Webster]