D defs.my
Entry 5 senses Webster, 1913

Prone

/prōn/ · IPA /pɹoʊn/
01 a. Bending forward; inclined; not erect.
  1. 1.
    Bending forward; inclined; not erect.
    “Towards him they bend With awful reverence prone.” Milton.
  2. 2.
    Prostrate; flat; esp., lying with the face down; -- opposed to supine.
    “Which, as the wind, Blew where it listed, laying all things prone.” Byron.
  3. 3.
    Headlong; running downward or headlong.
  4. 4.
    Sloping, with reference to a line or surface; declivous; inclined; not level.
    “Since the floods demand, For their descent, a prone and sinking land.” — Blackmore.
  5. 5.
    Inclined; propense; disposed; -- applied to the mind or affections, usually in an ill sense. Followed by to.
    “Poets are nearly all prone to melancholy.” Landor.