Lexical Definition

‎προσφιλής‎ prosphilḗs (pros-fee-lace') lovely ^G:A
from a presumed compound of ‎πρός‎ and ‎φιλέω‎

lovely.

• friendly towards, i.e. acceptable

Abbott-Smith

** προσφιλής, -ές (< φιλέω), [in LXX: Es 5:1, Si 4:7 20:13*;]
(a) of persons, in both act. and pass. sense (LXX, Es 5:1, Si 4:7 20:13);
(b) of things, pleasing, agreeable (EV, lovely): Phl 4:8.†

Abbott-Smith References

Liddell-Scott-Jones

προσφιλής-ής, ές,

(φιλέω) dear, beloved, τῶν ἡλίκων.. προσφιλήςεστάτῳ [Refs 5th c.BC+]: with dative, dear or friendly to.. , [Refs 5th c.BC+]: of things, pleasing, agreeable, ἔργον θεοῖσι π. [Refs 4th c.BC+]; στολή, χάρις, [Refs 5th c.BC+]; πάσαις ἡλικίαις.. ἡ χρῆσις αὐτῆς (i.e. τῆς μουσικῆς) ἐστὶ π. [Refs 4th c.BC+]; also of actions, lovely, ὅσα π. [NT] adverb -λῶς agreeably, with dative, [Refs 2nd c.BC+]

__II active, of persons, kindly affectioned, well-disposed, ὥς μ᾽ ἔθεσθε προσφιλήςῆ [Refs 5th c.BC+] adverb -λῶς kindly, [Refs 5th c.BC+]; π. ἡμῖν ἔχειν to be kindly affectioned to us, [Refs 5th c.BC+]: comparative -έστερον[Refs 5th c.BC+]: superlative -έστατα[Refs 5th c.BC+], -εστάτως [προσφιλήςέως “IG” 9(1).235 (from Larymna). ">Refs 5th c.BC+]

_{LSJ Scripture Refs: Phil.4.8}