Why identified by the name Og?

Question

Although the Midrash Bereshis Rabbah (42:8) records the story behind the origin of Og's name:

וַיָּבֹא הַפָּלִיט (בראשית יד, יג), רֵישׁ לָקִישׁ בְּשֵׁם בַּר קַפָּרָא הוּא עוֹג הוּא פָּלִיט, וְלָמָּה נִקְרָא שְׁמוֹ עוֹג שֶׁבָּא וּמָצָא אֶת אַבְרָם יוֹשֵׁב וְעוֹסֵק בְּמִצְוַת עוּגוֹת

Reish Lakish understands Og's name stems from finding Avraham working in mitzvah of matza 'cakes'. However, why does that scene inspire the Torah to call Og 'cake' forever? Is there an assumed zechus Og had for seeing Avraham make matza?

Answer 1

The Munkatcher Rebbe is quoted as asking this question here. He answers that the Arizal is quoted as having said that at the time of matzah baking one should exert oneself and sweat and this will atone for the husks of needlessly wasting seed. By being in the vicinity of Avraham's matzah bake, Og merited to shed the seed wasting husks.

This spiritual event is so significant, that Og is forever named after these cakes.