H4615. maamaqqim
מַעֲמַקִּים noun masculine plural depths; — absolute ׳מ [Psa 130:1] (figurative); construct literal מַעֲמַקֵּייָֿם [Isa 51:10]; figurative ׳מ מַיִם [Ezek 27:34] (fall of Tyre), [Psa 69:3]; [69:15] (distress).
I. עמר (√ of following; meaning dubious, perhaps related to Arabic be abundant (of water), surpass, overtop; Late Hebrew עָמִיר עוֺמֶר, = Biblical Hebrew; עֲמִירָא עָוּמְרָא, ᵑ7 = Biblical Hebrew I. עֹמֶר).