מַלְכוּ (malkû) is
an Aramaic noun
meaning royalty. It appears
57 times
in 2 books of the Hebrew Bible
(Strong's H4437).
Also rendered
kingdom
Same Hebrew root (TWOT 2829c)
Range of meaning (TWOT 2829c)royalty, reign, kingdom; dominion; kingly, realm
Full entry: Brown-Driver-Briggs and Strong's
מַלְכוּnoun, feminine: royalty, reign, kingdom
Strong's H4437מַלְכוּ: dominion (abstractly or concretely) KJV:kingdom, kingly, realm, reign.
Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.