different between scutum vs cotyledon

English

Etymology

Borrowed from Latin sc?tum (“shield”). Doublet of escudo, scudo, scute, and écu.

Noun

scutum (plural scuta)

1. (historical, Roman antiquity) An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; carried chiefly by the heavy-armed infantry of the Roman army.
2. (zoology) A scute.
3. (zoology) A shield-like protection, such as the scutum protecting the back of a hard tick (cf. alloscutum, conscutum)
4. (zoology) One of the two lower valves of the operculum of a barnacle.
5. (anatomy) The kneecap.

Latin

Etymology

Referred to either Proto-Indo-European *(s)kewH- (“to cover, protect”) or Proto-Indo-European *skey- (“to cut, split”). See Old Irish scíath, Russian ??? (š?it).

Pronunciation

• (Classical) IPA^(key): /?sku?.tum/, [?s?ku?t????]
• (Ecclesiastical) IPA^(key): /?sku.tum/, [?sku?t?um]

Noun

sc?tum n (genitive sc?t?); second declension

1. a shield, especially the scutum, the large oblong wooden shield carried by the Roman infantry
2. (by metonymy) shield-bearing soldiers
3. (figuratively) a defense, protection, shelter

Declension

Second-declension noun (neuter).

Related terms

Descendants

• Eastern Romance:
  • Romanian: scut
• ? English: scute
• ? English: scutum
• ? English: escutcheon
• Italian: scudo
  • ? English: scudo
• Old French: escut, escu
  • Middle French: escut
    • French: écu
      • ? English: écu
• Old Leonese:
  • Asturian: escudu
• Old Occitan: escut
  • Catalan: escut
  • Occitan: escut
• Old Portuguese: escudo
  • Galician: escudo
  • Portuguese: escudo
    • ? English: escudo
• Old Spanish:
  • Spanish: escudo
• Rhaeto-Romance:
  • Friulian: scût
• Sicilian: scutu
• ? Albanian: *šk?ta (possibly)
  • Albanian: shqyt

References

• scutum in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• scutum in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• scutum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• scutum in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• scutum in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin

English

Etymology

From Latin cotyl?d?n, from Ancient Greek ????????? (kotul?d?n, “cup-shaped cavity”), from ?????? (kotúl?, “cup”).

Pronunciation

• (UK) IPA^(key): /k?t??li?dn?/
• (US) IPA^(key): /?k?t?l?i?dn?/

Noun

cotyledon (plural cotyledons)

1. (physiology) Each of the patches of vili on the foetal chorion in the placenta of ruminants and some other mammals.
   • 1997, Roy Porter, The Greatest Benefit to Mankind, Folio Society 2016, p. 72:

     Forced to apply animal findings to humans, his human womb also had cotyledons like a dog's.

2. (botany) The leaf of the embryo of a seed-bearing plant; after germination it becomes the first leaves of the seedling.

Synonyms

• seed leaf

Derived terms

Translations