The Greek adjective entopios (ἐντόπιος) means local, of that place, or native to the region. It appears once in the New Testament (Acts 21:12), where the disciples and the local believers begged Paul not to go up to Jerusalem. It derives from en (in) + topos (place).
The single appearance of entopios occurs at a moment of intense communal intercession for Paul. The local believers — those rooted in that specific place — joined with traveling disciples to plead with Paul. Their local rootedness gave them a particular voice. The theology of entopios affirms the importance of local church community — not just abstract universal Christianity, but the disciples who are in this specific place together.