γωνία
gōnía
“angle, corner”
10 words in English grow from this root.
Decagon
Numberδέκαdéka
“ten angles”
Diagonal
Numberδιάdiá
“through the angles”
Dodecagon
Numberδώδεκαdṓdeka
“twelve angles”
Goniometry
Numberγωνίαgōnía
“angle measurement”
Heptagon
Numberἑπτάheptá
“seven angles”
Hexagon
Numberἕξhéx
“six angles”
Octagon
Numberὀκτώoktṓ
“eight angles”
Orthogonal
Numberὀρθόςorthós
“right-angled”
Pentagon
Everydayπέντεpénte
“five angles”
Polygon
Numberπολύςpolýs
“many-angled”