Root ر ت ل(r t l) has 3 unique word forms and appears 4 times in the Quran.

English gloss Well Ordered, Slow and distinct reading of Quran

Word Translation Occurrences
تَرۡتِيلًا (with) measured rhythmic recitation, (with) measured rhythmic recitation 2
تَرۡتِيلٗا (with distinct) recitation, (with distinct) recitation 2
وَرَتِّلِ and recite, and recite 2
وَرَتَّلۡنَٰهُ and We have recited it, and We have recited it 2