צָנִיןtsânîyn

thorn, prick (Numbers 33:55; Joshua 23:13)

Pronunciation: tsaw-neen' · Hebrew/Aramaic (Old Testament) · H6796

Same root

צֵןtsên · H6791a thorn; hence, a cactus-hedge

Where it appears

Appears 2 times in the Bible.

Numbers 33:55 But if you fail to drive out the people who live in the land, those who remain will be like splinters in your eyes and thorns in your sides. They will harass you in the land where you live.
Joshua 23:13 then know for certain that the Lord your God will no longer drive them out of your land. Instead, they will be a snare and a trap to you, a whip for your backs and thorny brambles in your eyes, and you will vanish from this good land the Lord your God has given you.

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).