Leviticus 5:15תִמְעֹל
“If someone acts unfaithfully and sins unintentionally against any of the LORD’s holy things, he must bring his guilt offering to the LORD: an unblemished ram from the flock, of proper value in silver shekels according to the sanctuary shekel; it is a guilt offering.
Numbers 5:6לִמְעֹל
“Tell the Israelites that when a man or woman acts unfaithfully against the LORD by committing any sin against another, that person is guilty
Joshua 7:1וַיִּמְעֲלוּ
The Israelites, however, acted unfaithfully regarding the things devoted to destruction. Achan son of Carmi, the son of Zabdi, the son of Zerah, of the tribe of Judah, took some of what was set apart. So the anger of the LORD burned against the Israelites.
1 Chronicles 5:25וַיִּמְעֲלוּ
But they were unfaithful to the God of their fathers, and they prostituted themselves with the gods of the peoples of the land, whom God had destroyed before them.
2 Chronicles 26:18מָעַלְתָּ
They took their stand against King Uzziah and said, “Uzziah, you have no right to offer incense to the LORD. Only the priests, the descendants of Aaron, are consecrated to burn incense. Leave the sanctuary, for you have acted unfaithfully; you will not receive honor from the LORD God.”
Ezekiel 39:26מָעֲלוּ
They will forget their disgrace and all the treachery they committed against Me, when they dwell securely in their land, with no one to frighten them.

Brown-Driver-Briggs

מָעַל vb. act unfaithfully, treacherously, a priestly word

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.