Definition:Enneahedron/Linguistic Note

Linguistic Note on Enneahedron
The word enneahedron derives from the Classical Greek  δεκαεδρόν:


 * ennea (ἐννέα), meaning nine
 * hedron (a form of ἕδρα), meaning base or seat.

The technically correct plural of enneahedron is enneahedra, but the word enneahedrons can often be found.