γωνία [goneea] = angle, corner
Octagon derives from Octo and Gonia. Octo means eight, gonia means angle. So, a shape of eight angles, is called an octagon.
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.
tria = three gonia = angle metron = measurement
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 word for "angle" in Greek is "γωνία" (pronounced "gonia"). It is derived from the Greek verb "γωνιάζω" (goniazo), which means "to corner" or "to bend." In geometry, it refers to the figure formed by two rays or lines that meet at a point, known as the vertex. The concept of angles has been significant in Greek mathematics and philosophy.
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.
The word "octagon" originates from the Greek word "oktagōnos," which means "eight angles." It is derived from "okto," meaning "eight," and "gonia," meaning "angle." The term has been used in English since the late 16th century to describe a polygon with eight sides and eight angles.
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"
In Greek Penta means 5 and gonyon means angle
Monk comes from the Greek word, monakhos, which means "solitary."