Stem أُمَّهَٰتِ has 2 unique word forms and appears 6 times in the Quran.

Word Translation Occurrences
أُمَّهَٰتِكُمۡ (of) your mothers 6
أُمَّهَٰتِكُمۡۖ (of) your mothers 2
أُمَّهَٰتِكُمۡۚ (as) your mothers 2
أُمَّهَٰتِهِمۡۖ (are) their mothers 2