Where does “hexoctahedron” come from?

hexoctahedron (English) comes from English hex, from English hexagon, from Latin hexagōnum, from Ancient Greek ἑξάγωνον, from Ancient Greek ἑξα-, from Ancient Greek ἕξ, from Proto-Hellenic hwéks, from Proto-Indo-European swéḱs — six.

hexoctahedron (English): A solid with forty-eight equal triangular faces

Definitions

A solid with forty-eight equal triangular faces

Ancestry of “hexoctahedron”, step by step

hexoctahedron traces back through two separate lines of ancestry.

via English hex

Step	Language	Word	Meaning
1	English	hex	To cast a spell on (specifically an evil spell), to bewitch
2	English	hexagon	A polygon with six sides and six angles
3	Latin	hexagōnum	hexagon
4	Ancient Greek	ἑξάγωνον	hexagon
5	Ancient Greek	ἑξα-	Forming compound words with the sense of "six"
6	Ancient Greek	ἕξ	six
7	Proto-Hellenic	hwéks	cardinal...
8	Proto-Indo-European	swéḱs	six

via English octahedron

Step	Language	Word	Meaning
1	English	octahedron	a polyhedron with eight faces; the regular...
2	Ancient Greek	ὀκτώ	eight

Every word from Proto-Indo-European swéḱs →Every word from Ancient Greek ἑξα- →Every word from Ancient Greek ἑξάγωνον →