Muhaymin
Yes. The root form appears as an attribute of God; Al‑Muhaymin is included in lists of divine names, notably in Qur'an 59:23.
Usage varies. Because the form is one of Allah's attributes, many traditional scholars advise preferring constructions like 'Abd al‑…' or choosing names that avoid implying divine uniqueness. In practice, some communities use 'Muhaymin' cautiously.
Muhaymin conveys watchful guardianship, oversight, protection, and faithful supervision in classical Arabic usage.
No. It is uncommon globally and considered rare compared with mainstream Muslim names.
In Arabic it is pronounced approximately as 'al‑mu‑hay‑min' with emphasis on the second syllable.