soporífero

== Portuguese == === Etymology === From Latin sopōriferum, accusative form of sopōrifer, derived from sopor (“sleep”), ultimately from Proto-Indo-European *swep- (“to sleep”). === Pronunciation === Hyphenation: so‧po‧rí‧fe‧ro === Adjective === soporífero (feminine soporífera, masculine plural soporíferos, feminine plural soporíferas) soporific (tending to induce sleep) Synonyms: sonífero, soporífico === Noun === soporífero m (plural soporíferos) soporific (sleep-inducing agent) Synonyms: sonífero, soporífico === Further reading === “soporífero”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026 “soporífero”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026 == Spanish == === Etymology === From Latin sopōriferum, accusative form of sopōrifer, derived from sopor (“sleep”), ultimately from Proto-Indo-European *swep- (“to sleep”). === Pronunciation === IPA(key): /sopoˈɾifeɾo/ [so.poˈɾi.fe.ɾo] Rhymes: -ifeɾo Syllabification: so‧po‧rí‧fe‧ro === Adjective === soporífero (feminine soporífera, masculine plural soporíferos, feminine plural soporíferas) soporific (tending to induce sleep) Synonyms: somnífero, soporífico === Further reading === “soporífero”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025