defectus

Latin

Etymology

Noun use of defectus, the perfect participle of deficio.

Pronunciation

• (Classical Latin) IPA^(key): [deːˈfɛk.tʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [deˈfɛk.tus]

Noun

dēfectus m (genitive dēfectūs); fourth declension

1. failure
2. absence
3. weakness, failing, defect
4. defection, revolt

Declension

Fourth-declension noun.

	singular	plural
nominative	dēfectus	dēfectūs
genitive	dēfectūs	dēfectuum
dative	dēfectuī	dēfectibus
accusative	dēfectum	dēfectūs
ablative	dēfectū	dēfectibus
vocative	dēfectus	dēfectūs

Derived terms

• dēfectibilis (Late Latin)

Descendants

• → Catalan: defecte (learned)
• → English: defect
• → Italian: difetto (semi-learned)
• → Old French: defaute (see there for further descendants)
• → Old Welsh: diffeith
  • Welsh: diffaith
• → Romanian: defect
• → Russian: дефе́кт (defékt)
• → Spanish: defecto

Adjective

dēfectus (feminine dēfecta, neuter dēfectum); first/second-declension adjective

1. tired, worn out
2. faulty, defective
3. suffered an eclipsing; waned, in want, in need, gone without
4. failed, run short/out, grown weak/faint, come to the end, lacking
5. passed away, became extinct, died/faded out, subsided/sunk lower
6. disappearing, swooning, fading away into white

Declension

First/second-declension adjective.

	singular				plural
	masculine	feminine	neuter		masculine	feminine	neuter
nominative	dēfectus	dēfecta	dēfectum		dēfectī	dēfectae	dēfecta
genitive	dēfectī	dēfectae	dēfectī		dēfectōrum	dēfectārum	dēfectōrum
dative	dēfectō	dēfectae	dēfectō		dēfectīs
accusative	dēfectum	dēfectam	dēfectum		dēfectōs	dēfectās	dēfecta
ablative	dēfectō	dēfectā	dēfectō		dēfectīs
vocative	dēfecte	dēfecta	dēfectum		dēfectī	dēfectae	dēfecta

Related terms

• dēfector
• dēficiō
• dēfectīvus

References

• “defectus”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “defectus”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "defectus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “defectus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• https://outils.biblissima.fr/en/collatinus-web/
• https://logeion.uchicago.edu/defectus