substructio
From LSJ
οὗτος ἐγὼ ταχυτᾶτι· χεῖρες δὲ καὶ ἦτορ ἴσο → this is my speed: my hands and heart are its equal, such am I for speed; my hands and heart are just as good
Latin > English (Lewis & Short)
substructĭo: ōnis, f. substruo,
I an under - building, foundation, substructure, Vitr. 1, 5: maxima debet esse cura substructionum, id. 6, 11: maximae, Caes. B. C. 2, 25: insanae, Cic. Mil. 20, 53; 31, 85; Liv. 38, 28; Front. Aquaed. 3, 5 sq.; Col. 1, 5, 9; v. substruo fin.