-gon

a combining form meaning “angled,” “angular,” used in the formation of compound words: polygon; pentagon.
Compare gonio-.

Origin of -gon

< Greek -gōnos, derivative of gōnía angle, akin to góny knee

Words nearby -gon

-glot, -gnathous, -gnomy, -gnosis, -gnostic, -gon, -gonium, -gony, -grade, -gram, -graph

British Dictionary definitions for -gon

-gon

n combining form

indicating a figure having a specified number of angles pentagon

Word Origin for -gon

from Greek -gōnon, from gōnia angle