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

English gloss Firm, Weave, Threshold, Close, Shut

Word Translation Occurrences
بِٱلۡوَصِيدِۚ at the entrance, at the entrance 2
مُّؤۡصَدَةُۢ closed in, closed in 2
مُّؤۡصَدَةٞ closed over, closed over 2