vīcēnsima (vicēs-, -suma) ae, f
vicensimus; sc. pars, the twentieth part, a tax of one twentieth, tribute of five per cent. : vicensumas vendere, i. e. the tribute of one twentieth of the crop , L.: quod vectigal superest domesticum praeter vicensimam?i. e. of the market-value of a slave when emancipated : portorii, i. e. a duty of five per cent. on exports .