🔼The name Beth-millo in the Bible
There's only one Beth-millo in the Bible. It's a city close to Shechem, which is mentioned three times but only in one context, namely in the gruesome story of Abimelech the son of Gideon, also known as Jerubbaal (Judges 9:6, 9:20).
In 2 Kings 12:20 we read how the servants of Joah struck their monarch don at בית מלא. The NIV and JSP translate this with Beth-millo but the NAS, KJV, ASV, Darby and Young translations read "the house of Millo".
🔼Etymology of the name Beth-millo
The name Beth-millo consists of two elements. The first part is identical to the common Hebrew word בית (bayit) meaning house:
The second part of our name comes from the verb מלא (male') meaning to be full or fulfilled:
The verb מלא (male') is also used in the sense of installing things or people (it also yields the noun מלא or מלוא (millu'), meaning a setting or installing of stones). In Joshua 24:26, Joshua renewed the covenant with the people of Israel and commemorated that with a set-up stone near Shechem. Later, the men of Shechem appear to have honored this covenant with a shrine they called Beth-baal-berith, so it seems likely that Beth-millo was named after that. As such it means House (Temple) Of The Monolith.
For a meaning of the name Millo, NOBSE Study Bible Name List reads Terrace, Elevation. Jones' Dictionary of Old Testament Proper Names proposes Rampart or "a mound filled with stones and earth". BDB Theological Dictionary lists the names Millo and Beth-millo under the root מלא (male') and submits the opinion of Gesenius, who believed it meant Fill "of earth, or earthwork".