H2141. zakak
[זָכַךְ] verb be bright, clean, pure (kindred with foregoing. Only Lamentations, Job) —
Qal Perfect only 3 masculine plural זַכּ֫וּ; —
1 be right, shining, figurative of splendour of nobles ׳ז מִשֶּׁלֶג נְזִירִים [Lam 4:7] (|| צַחוּ מֵחָלָב).
2 be clean, pure in God's sight, of heavens [Job 15:15], of stars [25:5] (|| יַאֲהִיל of moon; compare also יִזְכֶּה [15:14]; [25:4]).
Hiph`il cleanse, only Perfect1singular כַּמָּֽי׃ בְּבֹר וַהֲזִכּוֺתִי [Job 9:30], figurative of making morally spotless (|| הִתְרָחַצְתִּי).