prŏpĕrātĭo

I. a hastening, haste, quickness, speediness (rare but class.), Cic. Fam. 5, 12, 2; Q. Cic. ap. Cic. Fam. 16, 27, 1: properationem explorare, Sall. H. 2, 50 Dietsch; Amm. 31, 5, 9.