Root د ل و(d l w) has 4 unique word forms and appears 4 times in the Quran.

English gloss Bucket, Inform, Statement, Descend, Inform, Notify

Word Translation Occurrences
دَلۡوَهُۥۖ his bucket, his bucket 2
فَأَدۡلَىٰ then he let down, then he let down 2
فَتَدَلَّىٰ and came down, and came down 2
وَتُدۡلُواْ and present, and present 2