🔼The name Hareph in the Bible
There is one man named Hareph in the Bible, but the name of the Hariph mentioned in Nehemiah 7:24 is spelled the same as this name (the Masoretes pointed it so as to pronounce it the same as the similar name חריף, Hariph).
🔼Etymology of the name Hareph
The name Hareph comes from either of the roots חרף (harap), but it's ultimately unclear which one (admits also BDB Theological Dictionary in an uncanny bout of generosity):
For a meaning of the name Hareph, NOBSE Study Bible Name List reads Plucking and Jones' Dictionary of Old Testament Proper Names proposes the slightly liberal Maturity ("i.e. the flower of life," as in: ripe for harvest, we assume).
BDB Theological Dictionary does not offer an interpretation of this name but does list it under the verb חרף (harap), meaning to pluck or gather, albeit accompanied with above reproduced disclaimer.