senary I. senarynoun (-es) Etymology: Latin senarius consisting of six each obsolete: six or a group of six : something that is constituted of six figures, things, or parts < cold and heat, calm and storm … in one senary of days — John Goad > II. sena·ry\ˈsēnərē, ˈsen-, -ri\adjective Etymology: Latin senarius : of, based upon or characterized by six : compounded of six things : consisting of six parts : sextuple < senary scale > < senary division >