I.below, beneath, underneath (mostly ante-class.; “not in Cic. or Cæs.): subtus ambulare,” Cato, R. R. 48, 2: “labra subtus pendula,” Varr. R. R. 2, 9, 3: “Romani aggere et vineis et omnibus supra terram operibus, subtus Macedones cuniculis oppugnabant,” Liv. 36, 25; cf. Plaut. Cas. 5, 2, 26; Varr. L. L. 5, § 131 Müll.
subtus , adv. from sub; like intus, from in,