octogonal.
octagonal
Meaning & usage
octagonal
Where this word comes from
Etymology tree Proto-Indo-European *oḱtṓw Proto-Hellenic *oktṓ Ancient Greek ὀκτώ (oktṓ) Ancient Greek ὀκτᾰ- (oktă-) Proto-Indo-European *ǵónu Proto-Hellenic *gónu Proto-Hellenic *-ía Proto-Hellenic *gonwía Ancient Greek γωνίᾱ (gōníā) Ancient Greek -ος (-os) Koine Greek ὀκτάγωνος (oktágōnos)bor. Latin octōgōnusbor. Spanish octógono Proto-Indo-European *h₂el- Proto-Indo-European *-is Proto-Indo-European *h₂élisder.? Proto-Italic *-ālis Latin -ālis Spanish -al Spanish octogonal From octógono + -al.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.