uncolted

From un- +‎ colt +‎ -ed.

uncolted (not comparable)

1. (obsolete, nonce word) unhorsed
   • c. 1597 (date written), William Shakespeare, “The First Part of Henry the Fourth, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene ii], line 38:

     Thou liest, thou art not colted, thou art / uncolted. / I prithee good Prince Hal, help me to my / horse, good king's son.

• condulet