Paam (H6471) means a beat, stroke, time, occurrence, or step of the foot. It conveys the rhythmic repetition of divine action — once, twice, many times. It can refer to a single instance ('this time'), or a repeated pattern of God's working in history.
The phrase paam echad ('one time/once') marks singular definitive divine acts. Jacob exclaims that an evil beast has devoured his son 'this one time' (hapaam) — a phrase loaded with finality. The rhythmic beat of God's sovereign footsteps in history underlies the concept: He acts according to His own timing and repetition until His purposes are complete.