Etymologically

Etymology and origin of the Latin word undatus

Confidence
Established
Formation
Derivation
First attested
23–79 Pliny the Elder More words from the 1st century
Ultimate origin
Latin unda
Etymology tree
inherited borrowed derived
Latin unda
Catalan ona
French onde
Italian onda
Romanian undă
Spanish onda
Latin undātus
English undated
From the same root
Italian ondeggiare ← unda
Latin undō ← unda
Latin undōsus ← unda
Latin undulātus ← unda
Romanian undos ← undă
Spanish ondear ← onda

Forms

undātus (feminine undāta, neuter undātum); first/second-declension adjective[1][2]

Etymology

It is from Latin unda (“wave”) + -ātus.[1][2][3]

Earliest recorded meaning

It is known from Pliny the Elder, who describes kinds of shells marked imbricatim undata, with wavy lines like overlapping tiles.[2][4][5]

Semantic evolution

It means having a wave-like form or look;[1] Georges renders it as “watered” or “flamed”, of the pattern on the shells.[2]

Timeline

  • 23/24–79 AD – Pliny the Elder uses it of the wavy markings of shells.[2][3]

Meanings

Adjective

  1. Having a wave-like form or appearance; wavy, undulating.[1][4][5]

Word family

  • interundatus

References

  1. ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  2. ^ a b c d e Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  3. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  5. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
Cite this entry

“Undatus.” Etymologically, 14 Nov. 2026, etymologically.com/la/undatus. Accessed 14 Nov. 2026.

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