Root و ت د(w t d) has 2 unique word forms and appears 3 times in the Quran.

English gloss Fix, Fasten, Security, Drive in Pegs, Peg, Pin Stake, Hole, Mountain, Leader of a country

Word Translation Occurrences
ٱلۡأَوۡتَادِ (of) the stakes, stakes, (of) the stakes, stakes 4
أَوۡتَادٗا (as) pegs, (as) pegs 2