Lexical Definition

‎ὄρεξις‎ órexis (or'-ex-is) lust G:N-F
from ‎ὀρέγομαι‎

lust.

Usage: 1 form in 1 verse
Form Translated As     In Verse(s)
ὀρέξει desire Rom.1.27

Abbott-Smith

** ὄρεξις, -εως, ἡ (< ὀρέγομαι), [in LXX Wi 14:2 15:5 16:2, 3, Si 18:30 23:6, IV Mac 1:33, 35*;]
the most general ward for all kinds of desire, longing, appetite: of lust, Ro 1:27.
SYN.: v.s. πάθος.

Abbott-Smith References

Book Refs
Romans 1:27

Liddell-Scott-Jones

ὄρεξις, εως, ,

(ὀρέγω) general word for all kinds of appetency, conation, including ἐπιθυμία, θυμός, βούλησις, [Refs 4th c.BC+] K.; opposed to φυγή, [Refs 4th c.BC+]; opposed to ἔκκλισις, [Refs 2nd c.AD+]

__1 with genitive objecti, longing or yearning after a thing, desire for it, [Refs 5th c.BC+]
__2 absolutely, propension, appetency, . βουλευτική [Refs 4th c.BC+]; . διανοητική[Refs 4th c.BC+]