primogenitor
noun
pri·mo·gen·i·tor ˌprī-mō-ˈje-nə-tər 
: ancestor, forefather
Synonyms
- ancestor
- father
- forebear
- forbear
- forebearer
- forefather
- grandfather
- progenitor
See all Synonyms & Antonyms 
Example Sentences
the family held a huge reunion to mark the 200th anniversary of their primogenitors' arrival in America
Word History
Etymology
borrowed from New Latin prīmogenitor (Medieval Latin, "eldest son"), from prīmo- (in Late Latin prīmogenitus "firstborn," prīmogenitūra "condition of being the firstborn") + Latin genitor "father, parent, originator" — more at primogeniture, progenitor
First Known Use
1643, in the meaning defined above
primogenitor
noun
as in ancestor
a person who is several generations earlier in an individual's line of descent the family held a huge reunion to mark the 200th anniversary of their primogenitors' arrival in America Synonyms & Similar Words
Relevance
- ancestor
- grandfather
- father
- progenitor
- forefather
- forebear
- forebearer
- forbear
- grandmother
- predecessor
- ancestry
- patriarch
- ancestress
- antecessor
- matriarch
- antecedents
- grandsire
- foremother
- sire
- roots
Antonyms & Near Antonyms
- descendant
- descendent
- offspring
- family
- lineage
- progeny
- children
- issue
- stock
- seed
- heir
- son
- successor
- daughter
- posterity
- inheritor
- scion