English: Was her name really Machalat? Was it not Basemat? Rather, this teaches that all his sins were forgiven him; from here [we learn] that a bridegroom’s sins are forgiven him.
On the daf / in context: The name Machalat (from the root of forgiveness) is read as a signal that marriage brings atonement for the groom; the change of name from Basemat is the midrashic trigger.
Type of Learning
Custom (aggadah — bridegroom’s sins are forgiven)
What Is Learned
A bridegroom’s sins are forgiven him; the name Machalat (forgiveness) applied to Esav’s new wife is the source of the principle.