octagon
/ˈɒktəɡ(ə)n/ · noun
Meaning
- A polygon with eight sides and eight angles.
- Often in the form Octagon: the arena for mixed martial arts.
Etymology / origin
From Latin octagōnon, octōgōnon (“octagon”), and from its etymon Ancient Greek ὀκτάγωνον (oktágōnon, “octagon”), probably from Koine Greek ὀκτάγωνος (oktágōnos, “having eight corners”) + -ον (-on, suffix forming nouns). ὀκτάγωνος is derived from ὀκτᾰ- (oktă-, prefix meaning ‘eight’) (from ὀκτώ (oktṓ, “eight”), ultimately from Proto-Indo-European *oḱtṓw (“eight”)) + γωνία (gōnía, “angle; corner”) (probably ultimately from Proto-Indo-European *ǵónu (“knee”)); analysable as octa- + -gon. The English word is cognate with Middle French octogone (modern French octogone), Italian octagono (obsolete), ottagono, Spanish octágono, octógono. Sense 2 (“arena for mixed martial arts”) refers to its shape.
- octágono(Spanish)→
- octagono(it)→
- octogone(French)→
- octogone(frm)→
- *ǵónu(ine-pro)→
- *oḱtṓw(ine-pro)→
- ὀκτάγωνος(grc-koi)→
- ὀκτάγωνον(grc)→
- octagōnon(la)→
- octagon (English)
- Relations: der, der, der, der, der, cog, cog, cog, cog
Related words
Descendant words
- oktagoni(Finnish) (cog)
- oktagon(Malay) (bor)
- oktagon(Tagalog) (bor)
Sources
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