Act 13:1 Now there were in the church that was at Antioch certain prophets and teachers; as Barnabas, and Simeon that was called Niger, and Lucius of Cyrene, and Manaen, which had been brought up with Herod the tetrarch, and Saul.
Act 11:26
And when he had found him, he brought him unto Antioch. And it came to pass, that a whole year they assembled themselves with the church, and taught much people. And the disciples (The prophets and Teachers in Acts 13:1) were called Christians first in Antioch.
Now listen to the Strong's pronunciation. https://www.blueletterbible.org/kjv/act/13/11/t_conc_1031001
Definition of Niger: Νίγερ Níger, neeg'-er; of Latin origin; black; Niger, a Christian:—Niger.
They were first called Nigger in Antioch!