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per-sterno: strāvi, strātum, 3, v. a.,I to pave all over, to make quite even or level: viam, Liv 10, 47, 4; Vitr. 7, 1, 7.
persternō,¹⁶ strāvī, strātum, ĕre, tr., paver entièrement : Liv. 10, 47, 4 ; Vitr. Arch. 7, 1, 7.