DAYSMAN Meaning of DAYSMAN in English /dayz"meuhn/ , n. , pl. daysmen . Archaic.an umpire; mediator. [ 1480-90; DAY + 'S 1 + -MAN; cf. day to submit for arbitration, appar. v. use of DAY ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012