Root غ م ر(g m r) has 3 unique word forms and appears 4 times in the Quran.

English gloss Cover, Bury, Abundant of water, Flood, Throes of death, Adventure

Word Translation Occurrences
غَمۡرَةٖ confusion, flood, confusion, flood 4
غَمَرَٰتِ agonies, agonies 2
غَمۡرَتِهِمۡ their confusion, their confusion 2