🔼The name Gibbethon in the Bible
Somehow the Philistines took control over Gibbethon, and when Nadab, son of Jeroboam, had been king of Israel for about a year, he decided to fight the Philistines over it. At the battle of Gibbethon, Baasha son of Ahijah killed Nadab and continued to also kill all other members of Jeroboam's family and made himself king (1 Kings 15:27).
🔼Etymology of the name Gibbethon
There are several ways to go about the etymology of the name Gibbethon, but it's clear it comes from the following root cluster:
The familiar waw-nun combination upon which our name ends localizes or personifies the root: place of גבב.
For a meaning of the name Gibbethon, NOBSE Study Bible Name List reads Mound. BDB Theological Dictionary lists Gibbethon under the root גבב and translates it with Mound, Height.
Alfred Jones (Dictionary of Old Testament Proper Names) takes Gibbethon from גבה and translates it as A Lofty Place.