centēsĭmus | centēsĭma, ae (noun F) :
* Num. ordin. [centum], the hundredth: pars,Plaut. Mil. 3, 1, 166: lux ab interitu Clodii,Cic. Mil. 35, 98 al.
* Subst.: , , f. (sc. pars), the hundredth part of a thing, as a revenue, tax, a percentage: rerum venalium,Tac. A. 1, 78; cf. id. ib. 2, 42.—And of interest, 1 per cent. monthly; therefore, acc. to our manner of computing interest, 12 per cent. annually,Cic. Att. 5, 21, 11 sq.; Sen. Ben. 7, 10: binae,Cic. Verr. 2, 3, 70, § 165.
* For centuplex, a hundredfold: frux,Plin. 5, 4, 3, § 24: grano,id. 18, 16, 40, § 141; cf. Varr. R. R. 1, 44, 2.

s. TLL