1.VerbTo affect in a sudden, unprecedented or surprising manner; to overwhelm a person's ordinarily contrary impulse.
"I apologise for my behaviour last night. I don't know what came over me."
2.VerbTo seem; to come to express a feeling or state.
"That's why he's come over strange."
3.VerbTo change one's position or location, especially to someone else's home or to an opposing side in competition or conflict.
"come over for coffee and cake; You'll soon come over to my way of thinking: welcome to the dark side.; He'll come over if we guarantee him a seat on the board."