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From Proto-Indo-European *(s)tāu-, *(s)te-(to stand, place); see also Old Frisian thāw, Old Saxon thau(custom), Old High German *gathau, kathau(discipline), Old English þēaw(custom, wone). More at thew.

Alternative forms[edit]



tueor (present infinitive tuērī, perfect active tuitus sum); second conjugation, deponent

  1. I look or gaze at, behold, watch, view.
  2. I care for, guard, defend, protect, support, compensate or make up for.
  3. I uphold, keep up, maintain, preserve.


  • The third principal part may also be tūtus sum.
   Conjugation of tueor (second conjugation, deponent)
indicative singular plural
first second third first second third
active present tueor tuēris, tuēre tuētur tuēmur tuēminī tuentur
imperfect tuēbar tuēbāris, tuēbāre tuēbātur tuēbāmur tuēbāminī tuēbantur
future tuēbor tuēberis, tuēbere tuēbitur tuēbimur tuēbiminī tuēbuntur
perfect tuitus + present active indicative of sum
pluperfect tuitus + imperfect active indicative of sum
future perfect tuitus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present tuear tueāris, tueāre tueātur tueāmur tueāminī tueantur
imperfect tuērer tuērēris, tuērēre tuērētur tuērēmur tuērēminī tuērentur
perfect tuitus + present active subjunctive of sum
pluperfect tuitus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present tuēre tuēminī
future tuētor tuētor tuentor
non-finite forms active passive
present perfect future present perfect future
infinitives tuērī tuitus esse tuitūrus esse
participles tuens tuitus tuitūrus tuendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
tuērī tuendī tuendō tuendum tuitum tuitū

Derived terms[edit]


  • tueor in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • tueor in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • Félix Gaffiot (1934), Dictionnaire Illustré Latin-Français, Paris: Hachette, s.v.tueor”.
  • Meissner, Carl; Auden, Henry William (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • to look after, guard a person's interests, welfare: commoda alicuius tueri
    • to live up to one's reputation: famam ante collectam tueri, conservare
    • to do one's duty: officium suum facere, servare, colere, tueri, exsequi, praestare
    • to manage one's affairs, household, property well or ill: rem familiarem tueri
    • to defend, strengthen the state: rem publicam tueri, stabilire
    • to guard, maintain one's dignity: dignitatem suam tueri, defendere, retinere, obtinere
  • tuition in The Century Dictionary, The Century Co., New York, 1911