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New Latin, from Ancient Greek φλέως (phléōs, wool-tufted reed).


fleo m (plural flei)

  1. timothy, catstail



From Proto-Italic *flēō, from Proto-Indo-European *bʰleh₁-.



fleō (present infinitive flēre, perfect active flēvī, supine flētum); second conjugation

  1. (intransitive) I weep, cry
  2. (transitive) I lament, grieve for
    • Horatius, Ars Poetica
      Sī vīs mē flēre, dolendum est prīmum ipsī tibi.
      If you wish me to cry, you yourself must first be grieved.


   Conjugation of fleō (second conjugation)
indicative singular plural
first second third first second third
active present fleō flēs flet flēmus flētis flent
imperfect flēbam flēbās flēbat flēbāmus flēbātis flēbant
future flēbō flēbis flēbit flēbimus flēbitis flēbunt
perfect flēvī flēvistī, flēstī1 flēvit flēvimus flēvistis, flēstis1 flēvērunt, flēvēre
pluperfect flēveram flēverās flēverat flēverāmus flēverātis flēverant
future perfect flēverō flēveris flēverit flēverimus flēveritis flēverint
passive present fleor flēris, flēre flētur flēmur flēminī flentur
imperfect flēbar flēbāris, flēbāre flēbātur flēbāmur flēbāminī flēbantur
future flēbor flēberis, flēbere flēbitur flēbimur flēbiminī flēbuntur
perfect flētus + present active indicative of sum
pluperfect flētus + imperfect active indicative of sum
future perfect flētus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present fleam fleās fleat fleāmus fleātis fleant
imperfect flērem flērēs flēret flērēmus flērētis flērent
perfect flēverim flēverīs flēverit flēverīmus flēverītis flēverint
pluperfect flēvissem, flēssem1 flēvissēs, flēssēs1 flēvisset, flēsset1 flēvissēmus, flēssēmus1 flēvissētis, flēssētis1 flēvissent, flēssent1
passive present flear fleāris, fleāre fleātur fleāmur fleāminī fleantur
imperfect flērer flērēris, flērēre flērētur flērēmur flērēminī flērentur
perfect flētus + present active subjunctive of sum
pluperfect flētus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present flē flēte
future flētō flētō flētōte flentō
passive present flēre flēminī
future flētor flētor flentor
non-finite forms active passive
present perfect future present perfect future
infinitives flēre flēvisse, flēsse1 flētūrum esse flērī flētum esse flētum īrī
participles flēns flētūrus flētus flendus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
flendī flendō flendum flendō flētum flētū

1At least one rare poetic syncopated perfect form is attested.

Derived termsEdit

Related termsEdit


  • fleo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • fleo in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • fleo in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) to be hardly able to restrain one's tears: fletum cohibere non posse
    • (ambiguous) to move to tears: lacrimas or fletum alicui movere

Middle EnglishEdit



  1. Alternative form of flo

Old EnglishEdit

Alternative formsEdit


Uncertain. Possibly from Proto-Germanic *fleg-, related to Proto-Germanic *flekka-. Cognate with Old Saxon flī (white spot).



flēo n

  1. A white spot in the eye

Usage notesEdit

  • The neuter forms are indeclineable.



  • flēa m (white spot in the eye)