English
icosagrid
From icosa- + grid.
Proto-Indo-European *dwi- ‘two’
Proto-Indo-European *déḱm̥ ‘ten’
Proto-Indo-European *(h₁)wídḱm̥ti
Proto-Hellenic *ewī́kəti
Ancient Greek εἴκοσι ‘twenty’
English icosa-
Today it means
noun An icosahedral grid
Language periods are conventional ranges, not dates for this word.
Etymograph / icosagrid