hyp·not·ic 
(hĭp-nŏtĭk)
(hĭp-nŏtĭk)adj.
1.
a. Of or relating to hypnosis.
b. Of or relating to hypnotism.
2. Inducing or tending to induce sleep; soporific: read the bedtime story in a hypnotic voice.
n.
1.
a. A person who is hypnotized.
b. A person who can be hypnotized.
2. An agent that causes sleep; a soporific.
[French hypnotique, from Late Latin hypnōticus, inducing sleep, from Greek hupnōtikos, from hupnoun, to put to sleep, from hupnos, sleep; see swep- in the Appendix of Indo-European roots.]
hyp·noti·cal·ly adv.