primogenial
adjective
pri·mo·genial
¦prī(ˌ)mō,
-mə+
1
or less commonly primigenial : first formed or generated : original, primitive
¦prīmə+
2
: primogenitary
Word History
Etymology
modification (influenced by Late Latin primogenitalis primogenital) of Latin primigenius primogenial (from primus first + -genius —from gignere to beget—) + English -al