from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix Ruler; leader: matriarch.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix leading, leader
from the GNU version of the Collaborative International Dictionary of English
- A suffix meaning a ruler, as in monarch (a sole ruler).
Middle English -arche, from Old French, from Late Latin -archa, from Latin -archēs, from Greek -arkhēs, from arkhos, ruler, from arkhein, to rule.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin -archa, -arches, from Ancient Greek -άρχης (-archēs), from ἀρχός (archos, "chief"). (Wiktionary)