fourfold
English
| 40 | ||
| ← 3 | 4 | 5 → |
|---|---|---|
| Cardinal: four Ordinal: fourth Abbreviated ordinal: 4th Latinate ordinal: quartary, quaternary Latinate reverse order ordinal: preantepenultimate Adverbial: four times Multiplier: fourfold Latinate multiplier: quadruple Distributive: quadruply Germanic collective: foursome Collective of n parts: quadruplet Greek or Latinate collective: tetrad Greek collective prefix: tetra-, tessera- Latinate collective prefix: quadri- Fractional: quarter, fourth Elemental: quadruplet Greek prefix: tetarto- Number of musicians: quartet Number of years: quadrennium, olympiad | ||
Alternative forms
Etymology
From Middle English fourfold, fourefold, from Old English fēowerfeald. Equivalent to four + -fold. Cognate with Dutch viervoud, Gothic 𐍆𐌹𐌳𐌿𐍂𐍆𐌰𐌻𐌸𐍃 (fidurfalþs).
Pronunciation
- (Received Pronunciation) IPA(key): /ˈfɔːfəʊld/
- (General American) IPA(key): /ˈfɔɹ.foʊld/
Audio (General American): (file)
Adjective
fourfold (not comparable)
- Four times as great; quadruple.
- Comprised of four individual members.
- 1895, [Charles Hardy], The Aural System […][1], page 5:
- Most pupils have a fourfold object in studying a language; they wish to be able to read and write, to speak and to understand it.
Synonyms
Derived terms
Translations
four times as great
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comprised of four individual members
Adverb
fourfold (not comparable)
- By a factor of four.
- 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, 2 Samuel 12:6:
- And he shall restore the Lambe fourefold, because he did this thing, and because he had no pittie.
Synonyms
- quadruply; see also Thesaurus:four times
Translations
by a factor of four
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Verb
fourfold (third-person singular simple present fourfolds, present participle fourfolding, simple past and past participle fourfolded)
Synonyms
Translations
increase to four times as much — see also quadruple
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Noun
fourfold (plural fourfolds)
- (mathematics) An algebraic variety of degree 4.
- 2015, Brent Pym, “Elliptic singularities on log symplectic manifolds and Feigin--Odesskii Poisson brackets”, in arXiv[2]:
- Our main application is to the classification of Poisson brackets on Fano fourfolds.