tredecimare
[CL tredecim+-are, cf. decimare]1to tax to the amount of one thirteenth.s1207~ata est AngliaAnn. BurtonI 209.2(math.) to put in the thirteenth place or column.milies mille millenus undecimat, centies vero milies mille millenus ~atThurkillAbac.f. 60v.