sexagon/ˈsɛk.sə.ɡən/EtymologyFrom sexa- + -gon. Piecewise doublet of hexagon.nounSynonym of hexagon.“They might have taken a narrower line of conduct; they might have squeezed out a greater extent of country, and what would have been the end? To build pentagons, sexagons and quintagons — to shew an incessant and provoking spirit of jealousy and bad neighbourhood […]”