Leviticus 26:39יִמַּקּוּ
Those of you who survive in the lands of your enemies will waste away in their iniquity and will decay in the sins of their fathers.
Psalm 38:5נָמַקּוּ
My wounds are foul and festering because of my sinful folly.
Isaiah 34:4וְנָמַקּוּ
All the stars of heaven will be dissolved. The skies will be rolled up like a scroll, and all their stars will fall like withered leaves from the vine, like foliage from the fig tree.
Ezekiel 4:17וְנָמַקּוּ
So they will lack food and water; they will be appalled at the sight of one another wasting away in their iniquity.
Zechariah 14:12הָמֵק
And this will be the plague with which the LORD strikes all the peoples who have warred against Jerusalem: Their flesh will rot while they stand on their feet, their eyes will rot in their sockets, and their tongues will rot in their mouths.

Brown-Driver-Briggs

[מָקַק] vb. decay, rot, fester, fig. pine away

Niph.

1. fester, of wounds

2. rot, rot away

3. moulder away

4. of pining away by reason of, as punishment for, iniquity

Hiph. a causing his flesh to rot

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.