soporific
1 synonym for soporific, grouped by meaning and by how common each one is.
Noun — Something, often a drug, that makes you feel sleepy.
Synonyms
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
Etymology
Comes from French soporifique, from Latin sopor (“deep sleep”); it is unrelated to stupor, which is distinct in Proto-Indo-European.
Full origin of soporific →