Where does “dodecagon” come from?

dodecagon (English) comes from French dodécagone, from French -gone, from Ancient Greek γωνία, from Ancient Greek γόνυ, from Proto-Hellenic gónu, from Proto-Indo-European ǵónu — knee.

dodecagon (English): A polygon with twelve edges and twelve angles

Definitions

A polygon with twelve edges and twelve angles

Ancestry of “dodecagon”, step by step

dodecagon traces back through two separate lines of ancestry.

via French dodécagone

Step	Language	Word	Meaning
1	French	dodécagone	dodecagon
2	French	-gone	-gon
3	Ancient Greek	γωνία	corner, angle; joiner's square; cornerstone
4	Ancient Greek	γόνυ	knee
5	Proto-Hellenic	gónu	knee
6	Proto-Indo-European	ǵónu	knee

via English gon

Step	Language	Word	Meaning
1	English	gon	One hundredth of a right angle; a gradian;...
2	English	gonna	—
3	English	going to	—

Words derived from “dodecagon”

dodecagonal

Every word from Proto-Indo-European ǵónu →