Etymologically

indecentia

Etymology and origin of the Latin word indecentia

Confidence
Established
Formation
Derivation
First attested
c. 84–25 BC Vitruvius More words from the 1st century BC
Ultimate origin
Latin indecēns
Etymology tree
inherited borrowed derived
Latin decet
Latin decēns
English decent
Latin indecēns
English indecent
Latin indecentia
English indecency
From the same root
Latin addecet ← decet
Latin decor ← decet
Latin dēdecet ← decet
Latin decenter ← decēns
Latin decentia ← decēns

Forms

indecentia f (genitive indecentiae); first declension[1]

Etymology

It is from Latin indecēns (“unbecoming”) + -ia.[1][2]

Earliest recorded meaning

Vitruvius (c. 84–c. 25 BC) is the first to use it: he tells of people judged foolish for the fault of impropriety, placing statues where they did not belong.[1][2][3]

Semantic evolution

Caelius Aurelianus uses it of the unpleasantness that a treatment brings the patient.[4][2] In medieval Latin, as in Albertus Magnus, it meant something unseemly or indecent, ugliness, and filth.[5]

English indecency (1580s) comes from it, first for outrageous conduct.[6]

Timeline

  • c. 84–c. 25 BC – Vitruvius uses it for impropriety.[1][3]
  • 5th century AD – Caelius Aurelianus uses it.[4][3]
  • 13th century – Albertus Magnus uses it of what is unseemly.[5][3]
  • 1580s – English indecency is formed from it.[6]

Meanings

Noun

  1. Want of propriety, unseemliness.[1][4]
  2. (Medieval Latin) Something indecent or improper.[5]
  3. (Medieval Latin) Ugliness; filth.[5]

References

  1. ^ a b c d e Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  2. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  6. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Indecentia.” Etymologically, 7 Nov. 2026, etymologically.com/la/indecentia. Accessed 8 Nov. 2026.

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