What does "hoary" mean?

Hoary: White or gray with age; hoar; as, hoary hairs. Reverence the hoary head. Dr. T. Dwight.

Additional senses

  1. 2.Hence, remote in time past; as, hoary antiquity.
  2. 3.Moldy; mossy; musty. [Obs.] Knolles.
  3. 4.(Zoöl.) Of a pale silvery gray.
  4. 5.(Bot.) Covered with short, dense, grayish white hairs; canescent. Hoary bat (Zoöl.), an American bat (Atalapha cinerea), having the hair yellowish, or brown, tipped with white.

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