From seneō (I am old) +‎ -scō.



senēscō (present infinitive senēscere, perfect active senuī); third conjugation, no passive, no supine stem

  1. I become aged, grow old, age.
  2. (by extension) I decay or diminish in strength, grow weak, weaken; waste away, wane, decline, dwindle.
  3. (figuratively, of an occupation) I linger too long.


   Conjugation of senēscō (third conjugation, no supine stem, active only)
indicative singular plural
first second third first second third
active present senēscō senēscis senēscit senēscimus senēscitis senēscunt
imperfect senēscēbam senēscēbās senēscēbat senēscēbāmus senēscēbātis senēscēbant
future senēscam senēscēs senēscet senēscēmus senēscētis senēscent
perfect senuī senuistī senuit senuimus senuistis senuērunt, senuēre
pluperfect senueram senuerās senuerat senuerāmus senuerātis senuerant
future perfect senuerō senueris senuerit senuerimus senueritis senuerint
subjunctive singular plural
first second third first second third
active present senēscam senēscās senēscat senēscāmus senēscātis senēscant
imperfect senēscerem senēscerēs senēsceret senēscerēmus senēscerētis senēscerent
perfect senuerim senuerīs senuerit senuerīmus senuerītis senuerint
pluperfect senuissem senuissēs senuisset senuissēmus senuissētis senuissent
imperative singular plural
first second third first second third
active present senēsce senēscite
future senēscitō senēscitō senēscitōte senēscuntō
non-finite forms active passive
present perfect future present perfect future
infinitives senēscere senuisse
participles senēscēns
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
senēscendī senēscendō senēscendum senēscendō

Derived termsEdit

Related termsEdit


  • senesco in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • senesco in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • senesco in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • Carl Meißner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • the moon waxes, wanes: luna crescit; decrescit, senescit