英和和英

別の表記

• four-fold

発音

• (Received Pronunciation) IPA: /ˈfɔːfəʊld/
• (General American) IPA: /ˈfɔɹ.foʊld/

語源

From 中期英語 fourfold, fourefold, from 古期英語 fēowerfeald. Equivalent to four +‎ -fold. Cognate with Dutch viervoud, Gothic 𐍆𐌹𐌳𐌿𐍂𐍆𐌰𐌻𐌸𐍃 (fidurfalþs).

形容詞

fourfold (not comparable)

1. Four times as great; quadruple.
2. Comprised of four individual members.
   • 1895, [Charles Hardy], The Aural System […]‎, 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.

同意語

• quadruple, quadruplicate

副詞

fourfold (not comparable)

1. 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.

同意語

• quadruply; see also Thesaurus:four times

動詞

fourfold (third-person singular simple present fourfolds, present participle fourfolding, simple past and past participle fourfolded)

1. To increase to four times as much; to multiply by four.

同意語

• quadruple, quadruplicate

名詞

fourfold (plural fourfolds)

1. (mathematics) An algebraic variety of degree 4.
   • 2015, Brent Pym, “Elliptic singularities on log symplectic manifolds and Feigin--Odesskii Poisson brackets”, in arXiv‎:

     Our main application is to the classification of Poisson brackets on Fano fourfolds.