From G1909 (epi, upon) and G4685 (spao, to draw). A technical medical term for surgically reversing circumcision — pulling the foreskin forward. Used by Paul in 1 Corinthians 7:18, where he tells believers not to attempt this procedure.
Paul's instruction 'Is any man called being circumcised? let him not become uncircumcised (epispaomai)' (1 Cor 7:18) addresses a real practice in the Greco-Roman world: Jewish men who underwent painful surgery to reverse circumcision in order to fit into Greek gymnasiums and society. Paul's point cuts both ways: neither adding circumcision (for Gentiles) nor removing it (for Jews) matters. What matters is 'keeping the commandments of God' (1 Cor 7:19). The theological principle is liberation: in Christ, identity is not determined by physical marks or cultural conformity, but by faith and obedience.