reining

Verb

rein (third-person singular simple present reins, present participle reining, simple past and past participle reined)

1. (transitive) To direct or stop a horse by using reins.
   • He mounts and reins his horse.[1611?], Homer, “(please specify |book=I to XXIV)”, in Geo[rge] Chapman, transl., The Iliads of Homer Prince of Poets. […], London: […] Nathaniell Butter, →OCLC; republished as The Iliads of Homer...
2. (transitive) To restrain; to control; to check.
   • Being once chafed, he cannot / Be reined again to temperance.c. 1608–1609 (date written), William Shakespeare, “The Tragedy of Coriolanus”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward]...
3. (intransitive) To obey directions given with the reins.
   • She worked each horse at a walk, trot, and then a canter. The horses reined well and executed stops quickly.2011, Marie Claire Peck, Rocking Horse Ranch, page 40

See all 8 meanings of rein