WordFormSenseإِحْفَاءVerbal nounExcess/vehemenceيَخْلِطُونَ3rd-person plural imperfectThey mixالْخَلَاءAbstract nounFreedom from blameالشَّنَاءَةNounEnmityقَعْسَاءFeminine adjectiveStubborn/unbending
Qaʿsāʾ agrees with the feminine noun ʿizzah: grammatical agreement contributes to reading the expression correctly.