folium

English

Etymology

Latin, a leaf.

Noun

folium ‎(plural foliums or folia)

1. A leaf, especially a thin leaf or plate.
2. (geometry) A curve of the third order, consisting of two infinite branches having a common asymptote. The curve has a double point, and a leaf-shaped loop.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.

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Latin

Etymology

PIE root
*bʰleh₃-

From Proto-Indo-European *bʰolh₃yom ‎(“leaf”), from *bʰleh₃- ‎(“blossom, flower”). Alternatively from *dʰolyom (*dʰol- "be green"), cf. the Welsh dail and Old Irish duille.

Pronunciation

• (Classical) IPA^(key): /ˈfo.li.um/, [ˈfɔ.li.ũ]
• (Ecclesiastical) IPA^(key): /ˈfo.li.um/, [ˈfɔː.li.um], [ˈfoː.li.um]

Noun

folium n ‎(genitive foliī); second declension

1. a leaf
2. a petal
3. a sheet or leaf of paper
4. (figuratively) trifle, thing of no consequence

Declension

Second declension.

Case	Singular	Plural
nominative	folium	folia
genitive	foliī	foliōrum
dative	foliō	foliīs
accusative	folium	folia
ablative	foliō	foliīs
vocative	folium	folia

Derived terms

• acrifolius
• aquifolius
• exfoliāris
• folia
• foliāceus

• foliamen (Mediaeval)
• foliātum
• foliātus
• foliōsus
• latifolius

Related terms

• foliātilis
• foliātūra

Descendants

• Aragonese: fuella
• Aromanian: foalji
• Asturian: fueya
• Catalan: full, fulla, foli
• Dalmatian: fualja
• English: foil, folio
• Franco-Provençal: fôlye
• French: feuille, folio
• Friulian: fuee
• Galician: folla
• Istro-Romanian: foľe

• Italian: foglia, foglio
• Norman: fielle
• Occitan: fuèlh, fuèlha, huelha
• Portuguese: folha, folho, fólio
• Romanian: foaie
• Romansch: fegl, figl, föglia
• Sardinian: fógiu, fògia, folla, foza
• Sicilian: fogghia, fogghiu
• Spanish: hoja, folio
• Venetian: fogia, foja, fogio, fojo
• Walloon: foye

References

• “fŏlĭum” in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879.
• “fŏlĭum” on page 678/1 of Félix Gaffiot (1934), Dictionnaire Illustré Latin-Français, Paris: Hachette.
• “folium” on page 719/3 of the Oxford Latin Dictionary (1st ed., 1968–82)
• “folium” on page 439/2 of Jan Frederik Niermeyer’s Mediae Latinitatis Lexicon Minus (1976)