Lexical Definition

‎צוּק‎ tsûwq (tsook) to pour H:V
a primitive root (identical with through the idea of narrowness (of orifice))

be molten, pour.

1) (Qal) to pour out, melt

Usage: 2 forms in 3 verses
Form Translated As     In Verse(s)
צָק֣וּן they poured out Isa.26.16
יָצ֥וּק it poured out Job.29.6
someone pours out Job.28.2

Brown-Driver-Briggs

II. [‎צוּק‎] verb pour out, melt (|| ‎יצק‎); —

Qal Perfect 3 plural (according to Thes and others) ‎צָקוּן‎ Isa 26:16, but see below; Imperfect 3 masculine singular ‎וְאֶבֶן יָצוּק נְחוּשָׁה‎ Job 28:2 (read perhaps ‎יָצוּקוּ‎, see Bu) and stone (ore, men) melt it into copper; ‎צוּר יָצוּק עִמָּדִי פַּלְגֵישָֿׁ֑מֶן‎ Job 29:6 the rock used to pour out beside me streams of oil.Isa 26:16 (as above) must mean they poured out (uttered) a whisper (‎לַחַשׁ‎; i. e. prayer); but form most improbable; Koppe Gr Di Du and others propose ‎צְקוֺן לַחַשׁ‎ (from assumed ‎צָקוֺן‎, I. ‎צוק‎) = constraint of (like that of) magic; < Houb Kit ‎צָֽעֲקוּ בְלַחַץ‎ ‎׳‎‎וגו‎, or CheHpt ‎צָעַקְנוּ מִלַּחַץ כִּי מוּסָֽרְךָ לָנוּ‎.

Brown-Driver-Briggs References

Book Refs
Job 28:2 · 29:6
Isaiah 26:16