Defn: Every moment; from moment to moment. Shenstone.

MOMENTARINESS
Mo"men*ta*ri*ness, n.

Defn: The state or quality of being momentary; shortness of duration.

MOMENTARY
Mo"men*ta*ry, a. Etym: [L. momentarius. See Moment.]

Defn: Done in a moment; continuing only a moment; lasting a very short time; as, a momentary pang. This momentary joy breeds months of pain. Shak.

MOMENTLY
Mo"ment*ly, adv.

1. For a moment.

2. In a moment; every moment; momentarily.

MOMENTOUS
Mo*men"tous, a. Etym: [Cf. L. momentosus rapid, momentary.]

Defn: Of moment or consequence; very important; weighty; as, a
momentous decision; momentous affairs.
— Mo*men"tous*ly, adv.
— Mo*men"tous*ness, n.