I don't know why abuse must be “ongoing” to be categorized as abuse, but if you insist, here's a readjustment: assuming that your father just once beat you with a belt hard enough to leave black and blue marks for a week, then your father once assaulted and battered you. (By the way, legally, assault and battery does not have to be “ongoing” to qualify as assault and battery.”)
Which is a general enough definition to make any form of corporal punishment assault and battery.
If that is where you want to pin your definition, then that’s on you.
Just realize what kind of company taking that stance puts you with.