Abbott-Smith Manual Greek Lexicon
εἰκών (G1504)
23 εἰκών , -όνος (cf. ἔοικα ), [in LXX chiefly for צֶלֶם ;] an image, likeness : Mt 22:20 , Mk 12:16 , Lk 20:24 , Ro 1:23 , I Co 15:49 , Re 13:14 , 15 14:9 , 11 15:2 16:2 19:20 20:4 ; opp. to σκιά , He 10:1 ; of man, εἰ. θεοῦ , I Co 11:7 ; of the regenerate, εἰ. τ. θεοῦ Col 3:10 (v. Lft., in l.); εἰ. τ. υἱοῦ τ. θεοῦ , Ro 8:29 , II Co 3:18 ; of Christ, εἰ. τ. θεοῦ , II Co 4:4 , Col 1:15 .† SYN. : ὁμοίωμα , denoting resemblance, which may however be merely accidental. εἰ. is a derived likeness and like the head on a coin or the parental likeness in a child, implies an archetype. Cf. also εἶδος , appearance , not necessarily based on reality; σκιά , a shadowed resemblance; χαρακτήρ , the impress of a stamp; μόρφη (q.v.), the form as indicative of the inner being.
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain