Abbott-Smith Manual Greek Lexicon
ἐθελο-θρησκία (G1479)
1 *† ἐθελο-θρησκία (Rec. -εία ), -ας, ἡ , self-imposed worship : Col 2:23 (eccl.; cf. DB , iv, 923 a ; Cremer, 733).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain