Octagon derives from Octo and Gonia. Octo means eight, gonia means angle. So, a shape of eight angles, is called an octagon.
tria = three gonia = angle metron = measurement
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.
The word "hexagon" comes from Greek, with "hexa" meaning "six" and "gonia" meaning "angle." It refers to a polygon with six sides and six angles.
The Greek root meaning angle or corner is "gonia."
From Greek duo "two" + deka "ten" + gonia . You can understand why a hexagon is called a hexagon using the same idea. Hex referring to 6 and gonia again. Now how about a nonagon. Nope, not greek, it comes from the latin word for 9 which is nonus. So it does not always work.
Greek: "poly-" from polus, meaning many. "gon" from gonia, meaning angle. Hence, many angles and implicitly many sides.
polygon < πολύγωνο < πολύ + γωνίαπολύ = multi-, manyγωνία = angleSo polygon = "multiangled"
comes from three Greek words; "tria"-three, "gonia"-angle, "metron"-measurement RAYMARK is online
In Greek Penta means 5 and gonyon means angle
Monk comes from the Greek word, monakhos, which means "solitary."
The Greek word for "rule" literally means "to umpire".