🔼The name Mezahab in the Bible
It's not clear whether the name Mezahab belongs to a man or a woman in the Bible. It occurs only in one context, namely in the detail that king Hadad's (or Hadar's) wife was Mehetabel, daughter of Matred, daughter of Mezahab (Genesis 36:39, 1 Chronicles 1:50).
Since the other two names of this micro-genealogy are feminine, some scholars assume that Mezahab was a woman too. Traditionally, however, genealogies tend to end up in a male ancestor, preferably an important ancestor.
🔼Etymology of the name Mezahab
The name Mezahab, or rather Me-zahab, consists of two elements. The first element is the noun מים (mayim), meaning water(s), used in its construct form:
The second part of our name is the noun זהב (zahab), meaning gold:
For a meaning of the name Mezahab, both NOBSE Study Bible Name List and Jones' Dictionary of Old Testament Proper Names read Waters Of Gold. But NOBSE deems Mezahab a feminine name, whereas Jones thinks it's a masculine name.
BDB Theological Dictionary doesn't translate Mezahab but does list it under the noun מים (mayim), meaning water(s).
Note that this name occurs in the narrative of Exodus 32:24 as the phrase למי זהב, meaning "whoever has gold".