Lexical Definition

‎זָקַק‎ zâqaq (zaw-kak') to refine H:V
a primitive root

fine, pour down, purge, purify, refine.

1) to purify, distil, strain, refine
1a) (Qal)
1a1) to purify, distil, strain
1a2) to refine
1b) (Piel) to purge, refine
1c) (Pual) to refine, purify

See Greek: δοκίμιον · δόκιμος · ἐκχέω · ἐπιχέω · καθαρίζω

Usage: 7 forms in 7 verses
Form Translated As     In Verse(s)
מְזֻקָּקִֽים refined Isa.25.6
מְזֻקָּ֖ק purified 1Chr.28.18
מְזֻקָּ֔ק purified 1Chr.29.4
מְ֝זֻקָּ֗ק purified Ps.12.6
יָזֹֽקּוּ people refine Job.28.1
יָזֹ֖קּוּ they refine Job.36.27
וְזִקַּ֣ק and he will refine Mal.3.3

Brown-Driver-Briggs

I. [‎זָקַק‎] verb refine, purify **perhaps properly strain or filter through, compare Job 36:27; Isa 25:6. (Aramaic ‎זְקַק‎; perhaps kindred with Assyrian za‡i‡u, wind, AsrbAnnals vi. 64 and Aramaic , ‎זִיקָּא‎ violent wind, violent rain with whirlwind) —

Qal Imperfect 3 masculine plural ‎יָזֹ֫קּוּ‎ Job 28:1 object ‎זָהָב‎, Job 36:27 object ‎מָטָר‎ (see Di). Pi`el Perfect ‎וְזִקַּק‎ consecutive Mal 3:3 (|| ‎וְטִהַר‎) figurative, of purifying sons of Levi, like gold and silver ‎כְּזָהָב‎ etc. Pu`al Participle ‎מְזֻקָּק‎ refined, of gold 1Chr 28:18, of silver 1Chr 29:4: Ps 12:7* (‎שׁבעתים‎ ‎׳‎‎מ‎); of settled wines ‎שְׁמָרִים מְזֻקָּקִים‎ Isa 25:6.

II. ‎זקק‎ (Late Hebrew ‎זָקַק‎ bind, fetter, Aramaic ‎זְקַק‎ id.; compare (perhaps from idea of restraint) Arabic , Aramaic , ‎זִיקָּא‎, ‎זִיקוּקָא‎, Ethiopic all = (wine-) skin, etc.; also Late Hebrew ‎זִיקָה‎, obligation; Aramaic ring).

Brown-Driver-Briggs References

Book Refs
1 Chronicles 28:18 · 29:4
Job 28:1 · 36:27
Psalms 12:7*
Isaiah 25:6
Malachi 3:3