to pardon or excuse an offense or mistake; the act of forgiveness

To grant pardon for a mistake, offense, or sin, and cease to feel resentment.

please forgive me

loyalty and consideration for others; magnanimity (ideal virtues in Confucianism)

to forgive; to pardon

if I may be so bold

to ask for or seek forgiveness, mercy, or magnanimity

to beg forgiveness