eneágono - Wiktionary, the free dictionary
From Wiktionary, the free dictionary

By surface analysis, enea- + -gono. Cognate with English enneagon and French ennéagone.
eneágono m (plural eneágonos)
- “eneágono”, in Dicionário infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2025
- “eneágono”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025
eneágono (feminine eneágona, masculine plural eneágonos, feminine plural eneágonas)
eneágono m (plural eneágonos)
- “eneágono”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10