senectus

From senex (“old”) + -tus (adjective-forming suffix).

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

senectus (feminine senecta, neuter senectum); first/second-declension adjective

1. aged, very old

First/second-declension adjective.

• senecta
• Senectus (“the name of the Roman God of old age”)

From senex (“old”) + -tūs (abstract noun-forming suffix).

• (Classical Latin) IPA^(key): [sɛˈnɛk.tuːs]
• (modern Italianate Ecclesiastical) IPA^(key): [seˈnɛk.tus]

senectūs f (genitive senectūtis); third declension

1. old age, senility

   Synonym: senecta

   Antonyms: iuventās, iuventa, iuventūs

   • 161 BCE, Publius Terentius Afer, Phormio 575:

     Senectūs ipsa morbus est.

     Old age itself is a disease.

   • 1781, C. W. Kindleben, Gaudeamus igitur:

     Post molestam senectutem

     "After a troubling old age"

Third-declension noun.

• Italian: senettù, senettute
• Spanish: senectud

• “senectus”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “senectus”, in Charlton T. Lewis (1891), An Elementary Latin Dictionary, New York: Harper & Brothers
• "senectus", 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)
• “senectus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• Carl Meißner; Henry William Auden (1894), Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • to be worn out by old age: senectute, senio confectum esse
    
  • to live to a very great age: ad summam senectutem pervenire
    
  • old age creeps on us insensibly: senectus nobis obrēpit