in-dŭbĭtābĭlis, e, adj. [2. in-dubito],
that cannot be doubted , indubitable (postAug. and post-class.), Quint. 4, 1, 55; 4, 5, 13; Dig. 28, 5, 9, § 8,—Hence, adv.: in-dŭ-bĭtābĭlĭter , indubitably , without doubt , doubtless , Arn. 5, 183.