1.To lose the remembrance of; to let go from the memory; to cease to have in mind; not to think of; also, to lose the power of; to cease from doing. "Bless the Lord, O my soul, and forget not all his benefits." "Let my right hand forget her cunning." "Hath thy knee forget to bow?"
2.To treat with inattention or disregard; to slight; to neglect. "Can a woman forget her sucking child?... Yes, they may forget, yet will I not forget thee."
To forget one's self. (a)To become unmindful of one's own personality; to be lost in thought.
(b)To be entirely unselfish.
(c)To be guilty of what is unworthy of one; to lose one's dignity, temper, or self-control.