Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

99. Quinquesection &c — N. division by five &c 98; quinquesection &c;

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