Lexical Definition

‎μιαίνω‎ miaínō (me-ah'-ee-no) to stain ^G:V
perhaps a primary verb

defile.

• to sully or taint, i.e. contaminate (ceremonially or morally)

Abbott-Smith

μιαίνω, [in LXX chiefly for טָמֵא;]
1. to dye or stain.
2. to stain, defile, soil;
(a) in physical sense;
(b) in moral sense: Tit 1:15, He 12:15, Ju 8;
(c) in ritual sense (cf. Le 22:5, al.): Jo 18:28.†
SYN.: μολύνω, to besmear, which also differs from μ. in that it is never used, as μ. in its primary meaning, in an honourable sense (cf. Tr., Syn., § xxxi).

Abbott-Smith References

Liddell-Scott-Jones

μιαίνω,

future μιᾰνῶ [Refs 5th c.BC+]; 3rd.pers. singular μιᾰνεῖ [LXX]: aorist ἐμίηνα [LXX+8th c.BC+]; participle μιάνας [Refs 6th c.BC+]: perfect μεμίαγκα [Refs 1st c.AD+]:—middle, aorist ἐμιήνατο [Refs 4th c.AD+]:—passive, future μιανθήσομαι [Refs 5th c.BC+]aorist ἐμιάνθην, Epic dialect μιάνθην (see. below): perfect μεμίασμαι[LXX+2nd c.AD+]; 3rd.pers. singular μεμίανται [Refs 3rd c.AD+] (but 3rd.pers. plural, [Refs 3rd c.BC+]; infinitive μεμιάνθαι [Refs 1st c.BC+]aorist 2 passive ἐμίᾱν in 3rd.pers. singular subjunctive μιᾷ [Refs]future passive μιᾱσέω in 3rd.pers. singular indicative μιᾱσεῖ[Refs] 164:—stain, dye, ὡς δ᾽ ὅτε τίς τ᾽ ἐλέφαντα γυνὴ φοίνικι μιήνῃ [Refs 8th c.BC+]

__2 stain, sully, μιάνθησαν ἔθειραι αἵματι καὶ κονίῃσι [Refs 8th c.BC+]
__3 frequently of moral pollution, taint, defile, [Refs 5th c.BC+] [same place], etc.; κλέος Sol.[same place], [Refs 5th c.BC+]; τὰ ἱερά, τὸ θεῖον, [Refs 5th c.BC+]; dishonour a woman, [LXX]:— passive, incur defilement, [Refs 5th c.BC+]; of ritual defilement in funeral rites, [Refs]

_{LSJ Scripture Refs: LXX.Isa.30.22 ☩ LXX.Gen.34.5 ☩ LXX.Num.5.14 ☩ LXX.Gen.34.5}