Substo, substas, substiti, substitum, pe. cor. substâre. Teren. To sustaine, or avine constantly.
Lewis and Short: Latin dictionary
substantĭa, ae, f. [substo], that of which a thing consists, the being, essence, contents, material, substance (post - Aug.): hominis, Quint. 7, 2, 5: rerum, id. 2, 21, 1: placidae et altae mentis, id. 6, prooem. 7: rhetorices, id. 2, 15, 34: de substantiā aut de qualitate, id. 3, 6, 38: singula animalia singulas habere debent substantias, Sen. Ep. 113, 4: esse diversae substantiae, Front. Strat. 4 praef.: earum rerum pretium non in substantiā, sed in arte positum est,
in the material
, Dig. 50, 16, 14: delebo omnem substantiam, every thing that exists, Vulg. Gen. 7, 4.—II. Esp., fortune, substance, property: sine substantiā facultatum,
sub-sto, āre, v. n.I.To stand or be under or among, to be present (very rare; not in Cic.): si pure substante non rumpuntur hi tumores, Cels. 6, 10 med.: nullo dolore substante, id. 2, 7 med.; 2, 12, 2.— II.To stand firm, hold out, = subsisto: metuo, ut substet hospes, Ter. And. 5, 4, 11.