namesake
n. countablen. a person or thing that has the same name as someone or something else. You use this when you want to show that one person was named after another.
n. a person or thing that shares the same name as another. Often refers specifically to a person named after another individual.
I was named after my grandfather, my namesake.
The city of Alexandria was named after its founder and namesake, Alexander the Great.
While the young artist shared a surname with his famous namesake, their styles were so divergent that critics rarely mentioned the connection in their reviews.
Mid-17th century. Equivalent to name + sake. From the phrase “for (one's) name's sake”, first found in Bible translations as a rendering of a Calque of Hebrew לְמַעַן שְׁמוֹ (l'má'an sh'mó) idiom meaning “to protect one's reputation” or possibly “vouched for by one's reputation”. A familiar example is in Psalm 23:3.
Commonly used in the possessive form ('my namesake') or with the preposition 'of'.