TRANQUILIZING
ataractic, ataraxic, sedative, tranquilizing, tranquillizing, tranquilising, tranquillising
(adjective) tending to soothe or tranquilize; “valium has a tranquilizing effect”; “took a hot drink with sedative properties before going to bed”
Source: WordNet® 3.1
Verb
tranquilizing
present participle of tranquilize
Source: Wiktionary
Tran"quil*i`zing, Tran"quil*li`zing, a.
Definition: Making tranquil; calming. " The tranquilizing power of time."
Wordsworth.
– Tran"quil*i`zing*ly or Tran"quil*li`zing*ly, adv.
TRANQUILIZE
Tran"quil*ize, Tran"quil*lize, v. t. [imp. & p. p. Tranquilized or
Tranquilliized; p. pr. & vb. n. Tranquilizing or Tranquillizing.]
Etym: [Cf. F. tranquilliser.]
Definition: 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.
Syn.
– To quiet; compose; still; soothe; appease; calm; pacify.
Source: Webster’s Unabridged Dictionary 1913 Edition