The Collaborative International Dictionary of English v.0.48:

Prince \Prince\, n. [F., from L. princeps, -cipis, the first,
   chief; primus first + capere to take. See Prime, a., and
   Capacious.]
   1. The one of highest rank; one holding the highest place and
      authority; a sovereign; a monarch; -- originally applied
      to either sex, but now rarely applied to a female.
      --Wyclif (Rev. i. 5).
      [1913 Webster]

            Go, Michael, of celestial armies prince. --Milton.
      [1913 Webster]

            Queen Elizabeth, a prince admirable above her sex.
                                                  --Camden.
      [1913 Webster]

   2. The son of a king or emperor, or the issue of a royal
      family; as, princes of the blood. --Shak.
      [1913 Webster]

   3. A title belonging to persons of high rank, differing in
      different countries. In England it belongs to dukes,
      marquises, and earls, but is given to members of the royal
      family only. In Italy a prince is inferior to a duke as a
      member of a particular order of nobility; in Spain he is
      always one of the royal family.
      [1913 Webster]

   4. The chief of any body of men; one at the head of a class
      or profession; one who is pre["e]minent; as, a merchant
      prince; a prince of players. "The prince of learning."
      --Peacham.
      [1913 Webster]

   Prince-Albert coat, a long double-breasted frock coat for
      men.

   Prince of the blood, Prince consort, Prince of
   darkness. See under Blood, Consort, and Darkness.

   Prince of Wales, the oldest son of the English sovereign.


   Prince's feather (Bot.), a name given to two annual herbs
      (Amarantus caudatus and Polygonum orientale), with
      apetalous reddish flowers arranged in long recurved
      panicled spikes.

   Prince's metal, Prince Rupert's metal. See under Metal.

   Prince's pine. (Bot.) See Pipsissewa.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Thrumwort \Thrum"wort`\, n. (Bot.)
   A kind of amaranth (Amarantus caudatus). --Dr. Prior.
   [1913 Webster]