in-fătīgābĭlis, e, adj.,
indefatigable (post-Aug.): cursus, Plin. 28, 19, 78, § 257: quiddam est virtus, Sen. Vit. Beat. 7: animus, id. Ep. 66 med. ; Lact. 7, 27 fin. ; Macr. S. 1, 21, 17.— Adv.: in-fătīgābĭlĭter , indefatigably : gaudere, Aug. Ep. 32 ad Paul.