ἀνάθεμαanáthema

a (religious) ban or (concretely) excommunicated (thing or person)

Greek (New Testament) · G331

Meanings

1. properly = τὸ ἀνατιθέμένον, that which is laid by to be kept, a votive offering (as ἀνάθημα in 2 Maccabees 2:13, Luke 21:5—where LT read -θεμα, see M, Pr., 46).

2. [As equiv. in LXX for חֵרֶם, ] devoted, a thing devoted to God (see Driver, De., 98 f., and cf. Leviticus 27:28-29), hence

(a) of the sentence pronounced (Deuteronomy 13:15), a curse: Acts 23:14

(b) of the object on which the curse is laid, accursed (Deuteronomy 7:26): Romans 9:3, 1 Corinthians 12:3, 1 Corinthians 16:22, Galatians 1:8, Galatians 1:9 (see ICC on Ro.; Lft., Galatians 1:8, Galatians 1:9; Cremer, 547; Tr., Syn., § v; MM, VGT, under that word).

Same root

Where it appears

Appears 6 times in the Bible.

Acts 23:14 They went to the leading priests and elders and told them, “We have bound ourselves with an oath to eat nothing until we have killed Paul.
Romans 9:3 for my people, my Jewish brothers and sisters. I would be willing to be forever cursed—cut off from Christ!—if that would save them.
1 Corinthians 12:3 So I want you to know that no one speaking by the Spirit of God will curse Jesus, and no one can say Jesus is Lord, except by the Holy Spirit.
1 Corinthians 16:22 If anyone does not love the Lord, that person is cursed. Our Lord, come!
Galatians 1:8 Let God’s curse fall on anyone, including us or even an angel from heaven, who preaches a different kind of Good News than the one we preached to you.
Galatians 1:9 I say again what we have said before: If anyone preaches any other Good News than the one you welcomed, let that person be cursed.

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.