What womb forgets him?
Rashi, from Tanchuma Noach 10: Even his own mother had no mercy on her son. They put their children to seal openings over the Tehom [to try to stop the flood from below].
Malbim: Rechem is a lowly term for a Na'arah (like "Racham Rachamasayim"). A man who enticed a girl for Zenus, after fulfilling his list with her, he despises her and chooses another girl. He gives to the latter a sterility potion, lest she become pregnant and her beauty diminish. The former is like a widow, abandoned in her husband's lifetime. He forgets her, and is not intimate with her again.
What do we learn from "Mesako Rimah"?
Rashi: His body is sweet for the worm that consumes it.
Malbim: Mesako is his secret; Rimah is guile. He tricked her into revealing her hidden place.
What will not be remembered?
Rashi: Dor ha'Mabul was uprooted in one year. Iyov complains that they were given much time (120 years from the first warning), and many Resha'im died and did not see the punishment.
Malbim: Refer to 24:20:1:2.
What is broken "ka'Etz Avlah"?
Malbim: Avlah is the young Na'arah that he had Bi'ah with her first. She is broken, like a tree that breaks after its moisture ceased.
