Stem حُسْنَىٰ has 3 unique word forms and appears 15 times in the Quran.

Word Translation Occurrences
ٱلۡحُسۡنَىٰۚ (is) the best, (is) the bliss, the beautiful, the best, the Most Beautiful Names 12
ٱلۡحُسۡنَىٰ (is) the best, the best, the most beautiful 8
بِٱلۡحُسۡنَىٰ in the best, the best 4
ٱلۡحُسۡنَىٰۖ good, the good 4
لَلۡحُسۡنَىٰۚ (will be) the best 2