συμπαραμένωsymparaménō

Rec, for παρα-μένω (see that word), Philippians 1:25.

Greek (New Testament) · G4839

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.
παραμένωparaménō · G3887to stay near, i.e. remain (literally, tarry; or figuratively, be permanent, persevere)

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