octagon

Meaning

Noun

• A polygon with eight sides and eight angles.
• Often in the form Octagon: the arena for mixed martial arts.

Origin

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• . is derived from ὀκτᾰ- (from ὀκτώ, ultimately from Proto-Indo-European *oḱtṓw) + γωνία (probably ultimately from Proto-Indo-European *ǵónu); analysable as octa- + -gon. The English word is cognate with Middle French octogone (modern French octogone), Italian octagono , ottagono, Spanish octágono, octógono.
• Sense 2 (“arena for mixed martial arts”) refers to its shape.