Found 2 items, similar to primogenitor.
English → English (WordNet) Definition: primogenitor primogenitor n : an ancestor in the direct line [syn: progenitor]
English → English (gcide) Definition: Primogenitor Primogenitor \Pri`mo*gen"i*tor\, n. [LL., fr. L. primus first + genitor a begetter.] The first ancestor; a forefather. [1913 Webster]