Attested since circa 1350 (buzina). Learned borrowing from Latin būcina. Compare Portuguese buzina and Spanish bocina.

• IPA^(key): /buˈθina̝/, (western) /buˈsina̝/

bucina m (plural bucinas)

1. bugle; trumpet
   • c1350, Kelvin M. Parker (ed.), Historia Troyana. Santiago: Instituto "Padre Sarmiento", page 129:

     Et mãdarõ logo sonar [per] la villa cornos et buzinas et tronpas et anafijs.

     And they ordered to play horns and bugles and trumps and trumpets through the town

2. horn, klaxon

   Synonym: claxon

3. conch
4. whelk (Buccinum undatum)

   Synonym: bucio

• Ernesto Xosé González Seoane, María Álvarez de la Granja, Ana Isabel Boullón Agrelo (2006–2022) “buzina”, in Dicionario de Dicionarios do galego medieval (in Galician), Santiago de Compostela: Instituto da Lingua Galega
• Xavier Varela Barreiro, Xavier Gómez Guinovart (2006–2018) “buzina”, in Corpus Xelmírez - Corpus lingüístico da Galicia medieval (in Galician), Santiago de Compostela: ILG
• Antón Luís Santamarina Fernández, editor (2006–2013), “bucina”, in Dicionario de Dicionarios da lingua galega [Dictionary of Dictionaries of the Galician language] (in Galician), Santiago de Compostela: Instituto da Lingua Galega
• Antón Luís Santamarina Fernández, Ernesto Xosé González Seoane, María Álvarez de la Granja, editors (2003–2018), “bucina”, in Tesouro informatizado da lingua galega (in Galician), Santiago de Compostela: Instituto da Lingua Galega
• Rosario Álvarez Blanco, editor (2014–2024), “bucina”, in Tesouro do léxico patrimonial galego e portugués (in Galician), Santiago de Compostela: Instituto da Lingua Galega, →ISSN

English Wikipedia has an article on:

bucina

Wikipedia

From bōs, bovi- (“cow”) + the root of canō (“sing”).

• (Classical Latin) IPA^(key): /ˈbuː.ki.na/, [ˈbuːkɪnä]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈbu.t͡ʃi.na/, [ˈbuːt͡ʃinä]

būcina f (genitive būcinae); first declension

1. bugle
2. curved war trumpet
3. (Late Latin, Medieval Latin) any trumpet in general
   • Vulgate Bible, Douay-Rheims Version, Exodus 20:18
     • Cunctus autem populus videbat voces et lampadas et sonitum bucinae montemque fumantem et perterriti ac pavore concussi steterunt procul.
     • And all the people saw the voices and the flames, and the sound of the trumpet, and the mount smoking; and being terrified and struck with fear, they stood afar off.

First-declension noun.

• būcinō
• būcinum

• “bucina”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “bucina”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• bucina in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• “bucina”, in Harry Thurston Peck, editor (1898), Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• “bucina”, in William Smith et al., editor (1890), A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin
• De Vaan, Michiel (2008) Etymological Dictionary of Latin and the other Italic Languages (Leiden Indo-European Etymological Dictionary Series; 7), Leiden, Boston: Brill, →ISBN, page 74