pérfido

See also: perfido

Portuguese

Etymology

Etymology tree

Proto-Indo-European *per-

Proto-Italic *per

Latin per

Proto-Indo-European *bʰeydʰ-der.

Latin fidēs

Proto-Indo-European *-ós

Proto-Indo-European *-os

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-os

Proto-Italic *-os

Old Latin -os

Latin -us

Latin perfidusbor.

Portuguese pérfido

Borrowed from Latin perfidus.

Pronunciation

 

• (Brazil) IPA^(key): /ˈpɛʁ.fi.du/ [ˈpɛh.fi.du]

• (Brazil) IPA^(key): /ˈpɛʁ.fi.du/ [ˈpɛh.fi.du]
  • (São Paulo) IPA^(key): /ˈpɛɾ.fi.du/
  • (Rio de Janeiro) IPA^(key): /ˈpɛʁ.fi.du/ [ˈpɛχ.fi.du]
  • (Caipira) IPA^(key): /ˈpɛɻ.fi.du/

 

• (Portugal) IPA^(key): /ˈpɛɾ.fi.du/ [ˈpɛɾ.fi.ðu]

• (Portugal) IPA^(key): /ˈpɛɾ.fi.du/ [ˈpɛɾ.fi.ðu]
  • (Southern Portugal) IPA^(key): /ˈpɛɾ.fi.du/

• Hyphenation: pér‧fi‧do

Adjective

pérfido (feminine pérfida, masculine plural pérfidos, feminine plural pérfidas)

1. perfidious; disloyal

   Synonym: desleal

   Antonyms: fiel, leal, sincero

Derived terms

• perfidamente

Related terms

• perfídia

Further reading

• “pérfido”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “pérfido”, in Dicionário inFormal (in Portuguese), 2006–2026
• “pérfido” in Dicionário Aberto based on Novo Diccionário da Língua Portuguesa de Cândido de Figueiredo, 1913
• “pérfido”, in Dicionário Infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
• “pérfido”, in Michaelis Dicionário Brasileiro da Língua Portuguesa (in Portuguese), São Paulo: Editora Melhoramentos, 2015–2026, →ISBN
• “pérfido”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Spanish

Etymology

Etymology tree

Proto-Indo-European *per-

Proto-Italic *per

Latin per

Proto-Indo-European *bʰeydʰ-der.

Latin fidēs

Proto-Indo-European *-ós

Proto-Indo-European *-os

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-ós

Proto-Indo-European *-os

Proto-Italic *-os

Old Latin -os

Latin -us

Latin perfidusbor.

Spanish pérfido

Borrowed from Latin perfidus.

Pronunciation

• IPA^(key): /ˈpeɾfido/ [ˈpeɾ.fi.ð̞o]
• Rhymes: -eɾfido
• Syllabification: pér‧fi‧do

Adjective

pérfido (feminine pérfida, masculine plural pérfidos, feminine plural pérfidas)

1. perfidious

Related terms

• perfidia

Further reading

• “pérfido”, 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