מַצָּהmatstsâh

strife, contention (Isaiah 58:4; Proverbs 13:10; Proverbs 17:19)

Pronunciation: mats-tsaw' · Hebrew/Aramaic (Old Testament) · H4683

Same root

נָצָהnâtsâh · H5327properly, to go forth, i.e. (by implication) to be expelled, and (consequently) desolate; causatively, to lay waste; also (specifically), to quarrel

Where it appears

Appears 3 times in the Bible.

Proverbs 13:10 Pride leads to conflict; those who take advice are wise.
Proverbs 17:19 Anyone who loves to quarrel loves sin; anyone who trusts in high walls invites disaster.
Isaiah 58:4 What good is fasting when you keep on fighting and quarreling? This kind of fasting will never get you anywhere with me.

Source: Brown, Driver and Briggs, Hebrew and English Lexicon of the Old Testament (1906), public domain; markup by unfoldingWord, CC BY (github.com/unfoldingWord/Brown-Driver-Briggs-Enhanced).