#99. Quinquesection. &c. -- N. division by five &c. 98; quinquesection &c.; decimation; fifth &c.
V. decimate; quinquesect.
Adj. quinquefid, quinquelateral, quinquepartite; quinqevalent, pentavalent; quinquarticular[obs3]; octifid[obs3]; decimal, tenth, tithe; duodecimal, twelfth; sexagesimal[obs3], sexagenary[obs3]; hundredth, centesimal; millesimal &c.