Star
Estera is the Polish, Romanian, and Slovak form of Esther. It is derived from the Old Persian word 'stΔra', meaning star, though it is also linked to the Babylonian goddess Ishtar.
Less common today
Estera isn't in the latest US Top 1000. It last peaked at #7,980 in 1996.
Notable Polish-Jewish biologist and geneticist
Polish-Jewish educator and activist
US births per 5-year period, 1990βpresent (SSA data).