A namesake is a person who is named after someone else. This means that the person's name is based on the name of the person who is the namesake.
His daughter was born just a few days after his wife's namesake died.
The company is selling products named after the famous actor.
noun
a person with the same name as another
1
It is the namesake of the Maria asteroid family.
2
In the center of the high altar is the namesake Marian stature.
3
It is a court panegyric and highly praiseworthy of its namesake.
4
The namesake plant blooms in great profusion in May.
5
The primary feature of the park is its namesake cavern.
6
It has the same namesake as the crater, the German astronomer Walter Baade.
7
It is the namesake of the garden.
8
Grandson of the first namesake and eldest nephew of the second namesake.
9
It is the namesake of the Explorer Ridge.
10
Clearly it is not the namesake in Argentina.