Lexical Definition

‎φθόνος‎ phthónos (fthon'-os) envy ^G:N-M
probably akin to the base of ‎φθείρω‎

envy.

• ill-will (as detraction), i.e. jealousy (spite)

Abbott-Smith

** φθόνος, -ου, ὁ [in LXX: Wi 2:24 6:23, I Mac 8:16, III Mac 6:7 * ;]
envy: Ro 1:29, Ga 5:21, I Ti 6:4, Tit 3:3, I Pe 2:1; διὰ φθόνον, Mt 27:18, Mk 15:10, Phl 1:15; πρὸς φθόνον ἐπιποθεῖ τ. πνεῦμα (on the meaning, v. R, txt., mg. 1, 2; Hort, Ja., 93 f.), Ja 4:5.†

Abbott-Smith References

Liddell-Scott-Jones

φθόνος, ὁ,

ill-will or malice, especially envy or jealousy of the good fortune of others [Refs 5th c.BC+]through envy, [Refs 5th c.BC+]; opposed to εὔνοια, [Refs 5th c.BC+]; opposed to ἔπαινος, [Refs 5th c.BC+]; ἴσχει ὄλβος φθόνον incurs envy, [Refs 5th c.BC+]; κρέσσων οἰκτιρμοῦ φθόνος better to be envied than pitied ! [Refs 5th c.BC+]; φ. συνεστιώμενος, of wealth, [NT+5th c.BC+]: with genitive objecti, envy for, jealousy of, τῶν πεπραγμένων [Refs 5th c.BC+]; φθόνον δὲ σωμάτων ἕξει θεός i.e. will grudge, deny, [Refs 4th c.BC+]: with genitive subjunctive, envy or jealousy felt by another, [Refs 5th c.BC+]: plural, envyings, jealousies, heartburnings, [Refs 5th c.BC+]

__b a cause for indignation, a reproach, ἀποκτείνειν φθόνος [ἐστὶ] γυναῖκας [Refs 5th c.BC+]
__2 especially jealousy of the gods [Refs 5th c.BC+]
__II refusal from feelings of ill-will or envy, grudging, φθόνος μὲν οὐδεὶς.. [Refs 4th c.BC+]; οὐδεὶς φ. or φ. οὐδείς, with infinitive, said in granting a request willingly, ἃ τυγχάνω ἀκηκοώς, φ. οὐδεὶς λέγειν [Refs 5th c.BC+]

_{LSJ Scripture Refs: Phil.1.15}