FOURFOLD
quadruple, fourfold, four-fold
(adjective) four times as great or many; “a fourfold increase in the dosage”
quadruple, quadruplicate, quadruplex, fourfold, four-fold
(adjective) having four units or components; “quadruple rhythm has four beats per measure”; “quadruplex wire”
fourfold, four times
(adverb) by a factor of four; “the price of gasoline has increased fourfold over the past two years”
Source: WordNet® 3.1
Etymology
Adjective
fourfold (not comparable)
Four times as great; quadruple.
Comprised of four individual members.
Synonyms
• quadruple, quadruplicate
Adverb
fourfold (not comparable)
by a factor of four
Synonyms
• quadruply; see also four times
Verb
fourfold (third-person singular simple present fourfolds, present participle fourfolding, simple past and past participle fourfolded)
to increase to four times as much; to multiply by four
Synonyms
• quadruple, quadruplicate
Noun
fourfold (plural fourfolds)
(mathematics) An algebraic variety of degree 4.
Source: Wiktionary
Four"fold`, a. & adv. Etym: [AS. feówerfeold.]
Definition: Four times; quadruple; as, a fourfold division.
He snall restore the lamb fourfold. 2 Sam. xii. 6.
Four"fold`, n.
Definition: Four times as many or as much.
Four"fold`, v. t.
Definition: To make four times as much or as many, as an assessment,; to
quadruple.
Source: Webster’s Unabridged Dictionary 1913 Edition