σύσσωμοςsýssōmos

of the same body: Ephesians 3:6 (Eccl.).

Greek (New Testament) · G4954

Same root

σύνsýn · G4862with or together (but much closer than G3326 (μετά) or G3844 (παρά)), i.e. by association, companionship, process, resemblance, possession, instrumentality, addition, etc.
σῶμαsōma · G4983the body (as a sound whole), used in a very wide application, literally or figuratively

Where it appears

Appears 1 times in the Bible.

Ephesians 3:6 And this is God’s plan: Both Gentiles and Jews who believe the Good News share equally in the riches inherited by God’s children. Both are part of the same body, and both enjoy the promise of blessings because they belong to Christ Jesus.

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.