- Lying face downward.
- 1907, Robert William Chambers, chapter I, in The Younger Set, New York, N.Y.: D. Appleton & Company, OCLC 24962326:
- But they had already discovered that he could be bullied, and they had it their own way; and presently Selwyn lay prone upon the nursery floor, impersonating a ladrone while pleasant shivers chased themselves over Drina, whom he was stalking.
- Having a downward inclination or slope.
- Shooting from a lying down position.
- (figuratively) Predisposed, liable, inclined.
- prone to failure
- 1609, William Shakespeare, “Sonnet 141”, in Shake-speares Sonnets. Neuer before Imprinted, London: By G[eorge] Eld for T[homas] T[horpe] and are to be sold by William Aspley, OCLC 216596634:
- Nor are mine ears with thy tongue's tune delighted; / Nor tender feeling, to base touches prone, / Nor taste, nor smell, desire to be invited / To any sensual feast with thee alone: […]
lying face downward; prostrate