Abbott-Smith Manual Greek Lexicon
πορφύρα (G4209)
4 πορφύρα , -ας, ἡ , [in LXX for אַרְגָּמָן , אַרְגְּוָן ;] the purple-fish (cf. I Mac 4:23 ). purple dye . Later, = πορφυρίς , a purple garment : Mk 15:17 , 20 , Lk 16:19 , Re 18:12 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain