LF: I thought it’s a clear Midrash that Moshe is Egyptian (or maybe a Hebraicized version of an Egyptian word). His Hebrew name is Toviah. Mordechai and Ester are also Persian names (or Hebraicized versions thereof). “
Yep. But “Moshe” is the Hebrew form of whatever she called him. Just as Judah is the English form of Yehudah (or vice versa is the better analogy in this particular instance). Mordechai seems to have come from the Persian god Marduk, and Esther from the goddess Ishtar. Or so they say…
However, there is precedent for Esther, as the words “Haster Aster” appear in the Torah, referring to Hashem, and Mordechai can also come from “Moreid,” that Mordechai rebelled against Haman (I don’t know if that’s anyone’s actual p’shat – it occurred to me as I was typing this, now).