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Latin word momentum comes from Latin moveo, Latin instrumentum
moveo (Latin)
(of plants) I put forth. I arouse, excite, promote, produce. I begin, commence, undertake. I disturb, shake, remove. I excite, inspire. I exert, exercise. I move, stir, set in motion. I present or offer (an oblation or gift). I trouble, concern, torment (someone).
instrumentum (Latin)
(collective) supply, provision. (general) paraphernalia, equipment. An instrument, tool, utensil. Records, documents.
*movimentum (Latin)
momentum (Latin)
(New Latin, physics) momentum. (of time) brief space, moment, short time. Cause, circumstance; weight, influence, moment. Change, revolution, movement, disturbance. Importance. Movement, motion, impulse; course. Particle, part, point.