ز ک وz-k-w
(ن) زَكَا يَزْكُوْ زَكَاءًzakā yazkū zakāʾan: to be pure; to grow, free of impediments. ﴿مَا زَكٰى مِنْكُمْ مِّنْ اَحَدٍ اَبَدًا﴾ (An-Nūr 24:21)
زَكِيٌّzakiyy (adjective on the pattern of فَعِيْلٌfaʿīl): pure. ﴿لِاَهَبَ لَكِ غُلٰمًا زَكِيًّا﴾ (Maryam 19:19)
زَكٰوةٌzakāh: purity; growth; and in the legal (sharʿī) sense, the portion of wealth given as an obligatory due. ﴿وَاٰتُوا الزَّكٰوةَ﴾ (Al-Baqarah 2:43)
Form II (tafʿīl) زَكّٰى يُزَكِّيْ تَزْكِيَةًzakkā yuzakkī tazkiyatan: to purify; to make grow. ﴿قَدْ اَفْلَحَ مَنْ زَكّٰىهَا﴾ (Ash-Shams 91:9)
Form V (tafaʿʿul) تَزَكّٰى يَتَزَكّٰى تَزَكِّيًاtazakkā yatazakkā tazakkiyan: to attain purity. ﴿قَدْ اَفْلَحَ مَنْ تَزَكّٰى﴾ (Al-Aʿlā 87:14)