Root ث ن ي(v n y) has 13 unique word forms and appears 29 times in the Quran.

Word Translation Occurrences
ٱثۡنَيۡنِ (of) the two, two, two (Messengers) 12
ٱثۡنَتَيۡنِ twice, two, two females 8
ثَانِيَ the second, Twisting 4
ٱثۡنَتَا (of), two 4
ٱثۡنَيۡنِۖ two 4
ٱثۡنَيۡنِۗ two 4
مَثۡنَىٰ (in) pairs, two 4
ٱثۡنَا (is) twelve 2
مَّثۡنَىٰ two 2
يَثۡنُونَ fold up 2
ٱلۡمَثَانِي the oft-repeated 2
مَّثَانِيَ oft-repeated 2
يَسۡتَثۡنُونَ making exception 2
ٱثۡنَتَيۡ (into) two 2
ٱثۡنَانِ two 2
ٱثۡنَيۡ two 2