Lexical Definition

‎πορφυροῦς‎ porphyroûs (por-foo-rooce') purple G:A
from ‎πορφύρα‎

purple.

Usage: 4 forms in 7 verses
Form Translated As     In Verse(s)
πορφύραν purple LXX.Song.3.10
πορφυροῦν purple John.19.2John.19.5Rev.17.4Rev.18.16
πορφυρούν of purple LXX.Esth.8.15
πορφυροίσ of purple LXX.Esth.1.6

Abbott-Smith

πορφύρεος, -α, -ον, contr., -οῦς, -ᾶ, -οῦν (< πορφύρα), [in LXX for אַרְגָּמָן;]
purple: Jo 19:2, 5; as subst., πορφυροῦν (sc. ἱμάτιον), Re 17:4 18:6.†

Abbott-Smith References

Book Refs
John 19:2 · 19:5
Revelation 17:4 · 18:6

Liddell-Scott-Jones

πορφύρεος-εος, η, ον,

Attic dialect πορφῠροῦς, , οῦν, Aeolic dialect πορφύρεοςιος [Refs 7th c.BC+]; -ύριος also in [Refs 1st c.BC+]:

__I in [Refs 8th c.BC+]
__I.1 of the sea (compare πορφύρεοςω), heaving, surging, [χαράδραι] ἐς.. ἅλα πορφυρέην μεγάλα στενάχουσι ὁέουσαι [πορφύρεοςεον μεγάλ᾽ ἴαχε νηὸς ἰούσης 1.482, 8th c.BC: Odyssea Homerus Epicus “Odyssey” 2.428; π. κῦμα.. ποταμοῖο ἵστατ᾽ ἀειρόμενον 8th c.BC: Ilias Homerus Epicus “Illiad” 21.326, compare 8th c.BC: Odyssea Homerus Epicus “Odyssey” 11.243 ">Refs 8th c.BC+]; θάλασσα Alc. [prev. cited]
__I.2 of blood, gushing, αἵματι δὲ χθὼν δεύετο π. [Refs 8th c.BC+]; so, π. θάνατος onrushing death, of death in battle, [Refs 5th c.AD+]
__I.3 of the rainbow, [Refs 8th c.BC+]; perhaps lurid.
__II purple, of stuff, cloths, etc., π. φᾶρος [Refs 8th c.BC+]; σπάργανα, πτερά, [Refs 5th c.BC+]; χλανίς, χιτών, [Refs 5th c.BC+]
__II.2 of human complexion, bright-red, rosy, flushing, π. Ἀφροδίτη [Refs 6th c.BC+]; χείλη [Refs]
__II.3 purple-clad, in purple, [Refs 2nd c.AD+]
__II.4 neuter plural πορφυρᾶ purple colour or purple spots, [Refs 2nd c.AD+]
__II.5 πορφυροῦν (i.e. ἄνθος), τό, Woodfordia floribunda (an Indian shrub), [Refs 5th c.BC+]
__II.6 adverb -ῶς, στύφειν mordant for purple, [Refs]