What is to lift or push from behind (one who is endeavoring to climb); to push up; hence, to assist in overcoming obstacles, or in making advancement. [Colloq. U. S.] called?

boost — To lift or push from behind (one who is endeavoring to climb); to push up; hence, to assist in overcoming obstacles, or in making advancement. [Colloq. U. S.]. (Webster's 1913.)

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