Trăn'quil-ize or Trăn'quil-lize, v. t.

(trănk'wil-), Trăn'quil-lize, v. t. [imp. & p. p. TRANQUILIZED, or TRANQUILLIZED; p. pr. & vb. n. TRANQUILIZING, or TRANQUILLIZING.] [Fr. tranquilliser, Sp. tranquillizar, It. & Lat. tranquillare.] To render tranquil; to allay when agitated; to compose; to make calm and peaceful; as, to tranquilize a state disturbed by factions or civil commotions; to tranquilize the mind. “The tranquilizing power of time.” Wordsworth.

Synonyms—To quiet; compose; still; soothe; appease; calm; pacify.