Root ك ا س(k A s) has 5 unique word forms and appears 6 times in the Quran.

English gloss Nice, Fine, Pretty, Beautiful, Prettier

Word Translation Occurrences
كَأۡسٗا a cup, a cup , a cup 4
بِكَأۡسٖ a cup, a cup 2
كَأۡسٖ a cup, a cup 2
وَكَأۡسٖ and a cup, and a cup 2
وَكَأۡسٗا And a cup, And a cup 2