affectus

Latin

Alternative forms

• adfectus

Pronunciation

• (Classical Latin) IPA^(key): /afˈfek.tus/, [äfˈfɛkt̪ʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /afˈfek.tus/, [äfˈfɛkt̪us]

Etymology 1

From afficiō (“I affect”) +‎ -tus (action noun-forming suffix).

Noun

affectus m (genitive affectūs); fourth declension

1. affection, mood, emotion, feeling
2. affection, fondness, compassion, sympathy, love

Declension

Fourth-declension noun.

Case	Singular	Plural
Nominative	affectus	affectūs
Genitive	affectūs	affectuum
Dative	affectuī	affectibus
Accusative	affectum	affectūs
Ablative	affectū	affectibus
Vocative	affectus	affectūs

Descendants

• Asturian: afeutu
• Galician: afeito, afeuto
• → Catalan: afecte
• → Dutch: affect
  • → Indonesian: afek
• → Italian: affetto
• → Portuguese: afeto (semi-learned)
• → Spanish: afecto

References

• “2. affectus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• 2 adfectŭs in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette, page 34/3.
• “affectus¹” on page 77 of the Oxford Latin Dictionary (1st ed., 1968–82)

Etymology 2

Perfect passive participle of afficiō.

Participle

affectus (feminine affecta, neuter affectum); first/second-declension participle

1. (having been) endowed with, possessed of
2. (having been) influenced, (having been) affected
3. (having been) impaired, (having been) weakened

Declension

First/second-declension adjective.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
Nominative	affectus	affecta	affectum		affectī	affectae	affecta
Genitive	affectī	affectae	affectī		affectōrum	affectārum	affectōrum
Dative	affectō		affectō		affectīs
Accusative	affectum	affectam	affectum		affectōs	affectās	affecta
Ablative	affectō	affectā	affectō		affectīs
Vocative	affecte	affecta	affectum		affectī	affectae	affecta

Descendants

• → English: affect
• → Spanish: afecto

References

• “1. affectus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• affectus in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• 1 adfectus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette, page 34.
• Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • to be seriously ill: gravi morbo affectum esse, conflictari, vexari
    
  • to be so disposed: ita animo affectum esse
    
• “affectus²” on page 77 of the Oxford Latin Dictionary (1st ed., 1968–82)