🔼The name Bavvai in the Bible
The name Bavvai (by some translations transliterated as Bavai) occurs only once in the Bible. Bavvai, son of Henadad, is a contemporary of Nehemiah and Ezra and chief of the repair men who work on half of the district of Keilah in Judah during the post-exilic restoration (Nehemiah 3:18). Bavvai is either also known as Benui, or else Benui is Bavvai's brother (assuming that there are not two fathers called Henadad, which is of course also possible — Nehemiah 3:24).
🔼Etymology of the name Bavvai
Jones says that the name Bavvai starts out with the common particle ב (beth), meaning in or by:
The middle part of the name Bavvai is formed from the verb אוה ('wh), meaning to desire, wish or covet, which in turn is part of the root group אוה ('wh I - IV):
And the final yod of the name Bavvai, according to Jones, is a remnant of יה (Yah) = יהו (Yahu) = יו (Yu), which in turn are abbreviated forms of the Tetragrammaton; the name of the Lord: YHWH.
Altogether Alfred Jones translates the name Bavvai into With The Desire Of The Lord. NOBSE Study Bible Name List seems to at least partially agree with Jones and reads Wisher. BDB Theological Dictionary does not translate and proposes that the name Bavvai is a mis-rendering of the name Benui.