The Greek adjective/noun Galilaios (G1057) means "Galilean" — a person from the region of Galilee. It was used both as a geographical identifier and, by Jerusalem's elite, as a term of contempt. Jesus and most of His disciples were Galileans, and the early church was mockingly identified as a Galilean movement.
The label "Galilean" carried social and religious stigma in first-century Judaism — Galilee was considered provincial, mixed, and spiritually inferior to Judea. Yet God chose to incarnate His Son in Galilee, to call His disciples from among Galilean fishermen, and to launch the greatest movement in human history from this despised region. This is the consistent pattern of divine election: God chooses the foolish to shame the wise (1 Corinthians 1:27).