IPA: /səˈpɔːrɪfɪk/
KK: /səˈpɔrɪfɪk/
Causing or likely to make someone feel sleepy or drowsy.
The soporific effect of the warm milk helped her fall asleep quickly.
A substance that helps someone to sleep or makes them feel very sleepy.
The doctor prescribed a soporific to help me with my insomnia.
Soporific → It is formed from "sopor" (from Latin, meaning deep sleep) and "-ific" (meaning causing or making). The word "soporific" refers to something that causes or induces sleep.
Think of 'sopor' meaning deep sleep, and remember that 'soporific' is something that makes you sleep.