🔼The name Shashai in the Bible
The name Shashai occurs only once in the Bible, but note that this name is spelled the same as the name Sheshai. Shashai is mentioned as one of the sons of Bani who had married a foreigner, and who would divorce her in the purge of Ezra (Ezra 10:40).
🔼Etymology of the name Shashai
The sources we usually consult are not in agreement about the etymology of the name Shashai. Alfred Jones (Dictionary of Old Testament Proper Names) believes that this name is derived from a Syrian verb שוש, meaning to dwell. But to a Hebrew audience (especially to those who didn't speak Syriac), the name Shashai would appear to have to do with the following word cluster:
The letter י (yod) upon which our name ends, may either create an adjective (alabaster-like or pale), a possessive form (my alabaster), or may be a remnant of יה (Yah) = יהו (Yahu) = יו (Yu), which in turn are abbreviated forms of the Tetragrammaton יהוה, YHWH, or Yahweh.
For a meaning of the name Shashai, NOBSE Study Bible Name List takes the final yod to be the mark of the adjective and reads Whitish. Jones' Dictionary of Old Testament Proper Names, going with the Syriac verb and taking the final yod to be a mark of the Divine name, proposes Habitation Of The Lord. BDB Theological Dictionary does not offer an interpretation of this name.