LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

folium

folium n (genitive foliī or folī)
Classical[ˈfɔ.li.ũː]Ecclesiastical[ˈfɔː.li.um]
Mille Verba core vocabulary

Meaning

  1. neutera leaf (including a conifer's needle)
    Ex his pinus atque pinaster folium habent capillamenti modo praetenue longumque et mucrone aculeatum.Of these, the pine and wild pine have a leaf [that is] very thin and long, in the manner of hair, and tipped with a sharp point.79 CE, Pliny the Elder, “chapter 16”, in Naturalis Historia, book 16:
  2. neutera petal
  3. Late Latinneutera sheet or leaf of paper
  4. figurativelyneutertrifle, thing of no consequence

Latīnē defined in Latin in our graded readers

parva et viridis pars arboris; autumnō folia cadunt.
folium -ī n — in Mille Verba, Arborēs et Plantae

Declension

declension
formsingularplural
nominativefoliumfolia
genitivefoliī
folī
foliōrum
dativefoliōfoliīs
accusativefoliumfolia
ablativefoliōfoliīs
vocativefoliumfolia

fŏlĭum, ii, n. Gr. φύλλον, for φυλιον; cf. alius, ἄλλος; root prob. φλα-, φλασμός; Lat. flos, Flora,
I. a leaf (cf. frons).
I. Lit., of plants: quid in arboribus? in quibus non truncus, non rami, non folia sunt denique, nisi, etc., Cic. de Or. 3, 46, 179: latissima (folia) fico, angusta myrto, capillata pino, aculeata aquifolio, etc., Plin. 16, 24, 38, § 90: concava caepae, id. 19, 6, 31, § 100: foliis ex arboribus strictis, Caes. B. C. 3, 58, 3: mobilia, Hor. C. 1, 23, 5: amara, id. S. 2, 3, 114: arida laureae, Cic. Pis. 40, 97.— Prov.: folia nunc cadunt, si triduom hoc hic erimus, tum arbores in te cadent, Plaut. Men. 2, 3, 24.—As a proverb of mobility or changeableness: nec me consules movent, qui ipsi pluma aut folio facilius moventur, Cic. Att. 8, 15, 2.—The Sibyl wrote her oracles on leaves (acc. to Varro, on palmleaves), Verg. A. 3, 444; 6, 74 Serv.; hence, prov.: credite me vobis folium recitare Sibyllae, i. e. I am talking gospel, absolute truth, Juv. 8, 126.—*
II. Trop., a thing of no consequence, a trifle: folia sunt artis et nugae merae, App. M. 1, p. 106, 8.—
III. Transf., a leaf of paper (late Lat. for plagula, charta, or schedula): ille manu retractis in calcem foliis sic exorsus est, Macr. S. 5, 4, 1. (In Plin. 37, 7, 29, § 103, the better read. is fila; v. Jan. and Sillig, ad h. l.).

Origins

Traditionally derived from Proto-Indo-European *bʰolh₃yom (“leaf”), from *bʰleh₃- (“blossom, flower”), and thus an exact cognate of Ancient Greek φῠ́λλον (phŭ́llon). An alternative theory, favored by Driessen and De Vaan, derives the word from Proto-Indo-European *dʰolh₁yom, from *dʰelh₁- (“be green”), whence Middle Irish duille, Welsh dail, Ancient Greek θάλλω (thállō, “to bloom”), Old Armenian դալար (dalar, “green, fresh”), Albanian dal (“to exit, go out”).

Elsewhere
  • Catalanfoli
  • Englishfolio
  • Englishfolium
  • Frenchfolio
  • Romanianfoliufrom French folio
  • Frenchfolium
  • Frenchin-folio
  • GermanFolie
  • GermanFolio
  • Italianfolio
Gallo-Romance
  • Catalanfull
  • Occitanfuèlh
Insular Romance
  • Sardinianfógiu
Italo-Dalmatian
  • Italianfoglio
  • Neapolitanfoglio
  • Neapolitanfuoglio
  • Sicilianfogghiu
  • Venetanfogio
  • Venetanfojo
Ibero-Romance
  • Portuguesefolho
  • Galicianfollo
Gallo-Italic
  • Piedmontesefeuj
  • Romagnolfój
Rhaeto-Romance
  • Romanshfegl
  • Romanshfigl

Quick answers

What does folium mean in Latin?
folium, a noun, means “a leaf (including a conifer's needle); a petal; a sheet or leaf of paper”.
What is the genitive of folium?
The genitive singular is foliī. folium is neuter, second declension.
How do you pronounce folium?
In classical Latin, [ˈfɔ.li.ũː]; in ecclesiastical (church) Latin, [ˈfɔː.li.um].