from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The earliest ancestor.
- n. An ancestor or forebear.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An initial ancestor.
from the GNU version of the Collaborative International Dictionary of English
- n. The first ancestor; a forefather.
from The Century Dictionary and Cyclopedia
- n. A forefather; an ancestor.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an ancestor in the direct line
Late Latin prīmōgenitor : Latin prīmō, at first (from prīmus, first; see per1 in Indo-European roots) + Latin genitor, begetter (from genitus, past participle of gignere, to beget; see genə- in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)