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From Proto-Italic *senɣelos, from Proto-Indo-European *sem- (one) + distributive particle *ǵʰo- (compare Albanian gjithë).[1]



singulus (feminine singula, neuter singulum); first/second-declension adjective

  1. single
  2. apiece
  3. every
    • c. 4 BCE – 65 CE, Seneca the Younger, De brevitate vitae 13:
      Persequi singulos longum est quorum aut latrunculi aut pila aut excoquendi in sole corporis cura consumpsere uitam.
      It would be tedious to mention all the different men who have spent the whole of their life over chess or ball or the practice of baking their bodies in the sun.
  4. one each, one at a time


First/second-declension adjective.

Number Singular Plural
Case / Gender Masculine Feminine Neuter Masculine Feminine Neuter
Nominative singulus singula singulum singulī singulae singula
Genitive singulī singulae singulī singulōrum singulārum singulōrum
Dative singulō singulō singulīs
Accusative singulum singulam singulum singulōs singulās singula
Ablative singulō singulā singulō singulīs
Vocative singule singula singulum singulī singulae singula

First/second-declension adjective, plural only.

Number Plural
Case / Gender Masculine Feminine Neuter
Nominative singulī singulae singula
Genitive singulōrum singulārum singulōrum
Dative singulīs
Accusative singulōs singulās singula
Ablative singulīs
Vocative singulī singulae singula

Usage notes[edit]

Usually only used in the plural (singulī).

Derived terms[edit]


  • Aromanian: singur
  • Asturian: cenciellu (from diminutive)
  • Catalan: senzill (via Spanish), sengles
  • Dalmatian: sanglo
  • English: single (via Old French)
  • Friulian: sengul


  1. ^ Michiel de Vaan, Etymological Dictionary of Latin and the Other Italic Languages (Leiden: Brill, 2009), 566.