From Proto-Indo-European *bʰat-.[1] See also battuō.



fatuus (feminine fatua, neuter fatuum); first/second-declension adjective

  1. foolish, silly, simple
    Ego me ipsum stultum existimo, fatuum esse non opinor.I consider myself stupid, not silly.
  2. stupid
  3. (of food) insipid, tasteless
    Ut sapiant fatuae, fabrorum prandia, betae.(please add an English translation of this usage example)
    So that tasteless beets, the lunches of craftsmen, may have taste.
  4. awkward, clumsy, unwieldy
    Illa bipennem insulsam et fatuam dextra tenebat.(please add an English translation of this usage example)


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative fatuus fatua fatuum fatuī fatuae fatua
Genitive fatuī fatuae fatuī fatuōrum fatuārum fatuōrum
Dative fatuō fatuō fatuīs
Accusative fatuum fatuam fatuum fatuōs fatuās fatua
Ablative fatuō fatuā fatuō fatuīs
Vocative fatue fatua fatuum fatuī fatuae fatua


fatuus m (genitive fatuī); second declension

  1. A fool, simpleton, a jester, buffoon, blockhead
    Ita, rogo; paene effregisti, fatue, foribus cardines.I do so ask you; you fool, you've almost broken the hinges from off the door.


Second-declension noun.

Case Singular Plural
Nominative fatuus fatuī
Genitive fatuī fatuōrum
Dative fatuō fatuīs
Accusative fatuum fatuōs
Ablative fatuō fatuīs
Vocative fatue fatuī

Related termsEdit



  1. ^ Roberts, Edward A. (2014) A Comprehensive Etymological Dictionary of the Spanish Language with Families of Words based on Indo-European Roots, Xlibris Corporation, →ISBN

Further readingEdit