🔼The name Naamathite in the Bible
The name Naamathite is actually an ethnonym, which describes where someone is from. In this case, a Naamathite would be someone from Naamath (נעמת). No place called Naamath is mentioned anywhere in the Bible, but perhaps Naamath is an older spelling of the name Naamah (נעמה), which was the name of a town in Judah (Joshua 15:41).
🔼Etymology of the name Naamathite
The name Naamathite comes from the verb נעם (na'em) meaning to be pleasant, sweet, delightful, beautiful:
For a meaning of the name Naamathite, Jones' Dictionary of Old Testament Proper Names proposes Pleasantness. NOBSE Study Bible Name List does not translate Naamathite but interprets it as "an inhabitant of Naamah," and translates Naamah with "sweet, pleasant". BDB Theological Dictionary does not interpret the name Naamathite but does list it under the verb נעם (na'em I) meaning to be pleasant.