decimation; fifth &c
V. decimate; quinquesect.
Adj. quinquefid, quinquelateral, quinquepartite; quinqevalent,
pentavalent; quinquarticular†; octifid†; decimal, tenth, tithe;
duodecimal, twelfth; sexagesimal†, sexagenary†; hundredth, centesimal;
millesimal &c