U / undĕcĭmus
adjective #1823

undĕcĭmus

fem. undĕcĭma · neut. undĕcĭmum
unusdecimus
the eleventh
the eleventh: legio, Liv. 30, 18, 10: annus, Verg. E. 8, 39: dies, Plin. 11, 54, 118, § 283.