This is the 13836th most frequent German word.
erstgegborenen
"Erstgeborenen" means "firstborn" in English.
In this sentence, 'erstgeborene' is used as an adjective to describe the specific son who is the firstborn.
Der erstgeborene Sohn hatte das Recht auf eine besondere Zeremonie.
The firstborn son had the right to a special ceremony.
Here, 'Erstgeborener' functions as a noun referring to the individual who is the firstborn.
Die Eltern zeigten immer besonderen Stolz auf ihren Erstgeborenen.
The parents always showed special pride in their firstborn.
In this instance, 'Erstgeborener' is also used as a noun in a slightly different context emphasizing the role or status of being the firstborn.