from The American Heritage® Dictionary of the English Language, 4th Edition
- Six: hexagram.
- Containing six atoms, molecules, or groups: hexose.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- Forming compound words with the sense of "six".
Greek, from hex, six; see s(w)eks in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Representing Ancient Greek ἕξ (hex, "six"). (Wiktionary)