Genesis 6:7אֶמְחֶה
So the LORD said, “I will blot out man, whom I have created, from the face of the earth—every man and beast and crawling creature and bird of the air—for I am grieved that I have made them.”
Exodus 17:14אֶמְחֶה
Then the LORD said to Moses, “Write this on a scroll as a reminder and recite it to Joshua, because I will utterly blot out the memory of Amalek from under heaven.”
Deuteronomy 9:14וְאֶמְחֶה
Leave Me alone, so that I may destroy them and blot out their name from under heaven. Then I will make you into a nation mightier and greater than they are.”
2 Kings 14:27לִמְחוֹת
and since the LORD had said that He would not blot out the name of Israel from under heaven, He saved them by the hand of Jeroboam son of Jehoash.
Psalm 51:1מְחֵה
Have mercy on me, O God, according to Your loving devotion; according to Your great compassion, blot out my transgressions.
Proverbs 6:33תִמָּחֶה
Wounds and dishonor will befall him, and his reproach will never be wiped away.

Brown-Driver-Briggs

מָחָה vb. wipe, wipe out

Qal

1. wipe

2. blot out = obliterate from the memory

3. blot out = exterminate

Niph.

1. be wiped out

2. be blotted out

3. be exterminated

Hiph. blot out, from the memory

Sources: Brown-Driver-Briggs (1906, public domain) from the Open Scriptures Hebrew Lexicon (CC BY 4.0), glosses from STEPBible TBESH (CC BY 4.0); STEPBible TAHOT (Hebrew Bible, Leningrad Codex, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.