The Greek noun bdelugma means an abomination — something utterly detestable, especially in religious contexts. Used in the Septuagint (LXX) for Hebrew toevah (abomination), often referring to idols and pagan practices. In the New Testament it appears in the phrase 'the abomination that causes desolation' (Matthew 24:15, quoting Daniel) and in Revelation for Babylon's cup.
The 'abomination of desolation' (bdelugma tēs erēmōseōs) links Daniel 9:27, 11:31, 12:11 with Jesus' Olivet Discourse and Revelation. It refers to the ultimate desecration of God's holy place by evil — occurring partially in 167 BC (Antiochus IV) and awaiting ultimate fulfillment in end-time events. God's absolute holiness means that what the world normalizes as 'just politics' may be bdelugma before Him.