polygon
Pentagon, from Greek for "Five"
an octagon from the Greek okto, eight, is a polygon that has eight sides
A 7 sided polygon is called heptagon. "Hepta" derives from the Greek word: επτά (spelled epta) which means 7, while "gon" derives from the Greek word: γωνία (spelled gonia) which means angle.
A 95 sided polygon is called a 95-gon. The artificial Greek name of enneacontakaipentagon can be created but this would never be used in practice.
The Greek word polygon means 'many sides'
polygon < πολύγωνο < πολύ + γωνίαπολύ = multi-, manyγωνία = angleSo polygon = "multiangled"
polygon
Dodecahedron, the the Greek for 12.
The ancient Greeks because polygon come from a Greek word meaning 'many sides'
Poly is the word for many, probably Greek.
A 13 sided polygon is called a tridecagon or a triskaidecagon. The name comes from the Greek words for thirteen.
There is no established English word for a 100-sided polygon. However, there are three possible names: 100-gon Hectogon - Greek name Centagon - Latin/Greek name
"Poly gonos": many angled.
Pentagon, from Greek for "Five"
An 11-sided polygon is called a hendecagon or an endecagon from the Greek endeka- meaning 11, and -gon meaning angle.
A 7-sided polygon is called a heptagon. The word derived from Greek. If it derived from Latin it might be called a septagon, but that is not the case.