18Thenἄραalsoκαὶthoseοἱhaving fallen asleepκοιμηθέντεςinἐνChristΧριστῷhave perishedἀπώλοντο.
Then also those having fallen asleep in Christ have perished.
κοιμηθέντες
κοιμάομαι
I fall asleep, am asleep