† ˈpainous,a.Obs.rare. In 5 peynous. [a. OF.penus, -os, later peineus=It., Sp.penoso:—late L. pœnōs-us (Pseudo-Aug.) painful, f.pœna: see pain n.1] Painful; severe. c1400Beryn 2609 Peynous ordinaunce Is stallid for hir falshede.Ibid. 3766 She hath many a day led a peynous lyff.