Hazzelelponi (הַצְּלֶלְפּוֹנִי) may mean "protective shade before me" in Hebrew. In 1 Chronicles 4:3, Hazzelelponi was the daughter of Etam, sister of Jezreel and Ishma — a single rare mention preserving a Judahite woman of David's lineage.
Among the most obscure biblical women's names.
Hazzelelponi reduces to two — the number of Judahite obscure.