prolapse (v.)

"fall down or out," chiefly medical, 1736, from Latin prolapsus, past participle of prolabi "glide forward, slide along, slip forward or down;" see pro- "forward" + lapse (n.). As a noun, "a falling down of some part of the body," from 1808. Prolapsion in a theological sense, in reference to a falling into sin, is from c. 1600.

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