quantity

• n.量、数量；大量の；総量

PIE*kwoの疑問代名詞の語幹、quality、who、howと語源は同じ。

quantity

quantity: [14] Latin quantus meant ‘how much’ (it was a compound adjective formed from quī ‘who’). From it was derived the noun quantitās ‘extent, amount’, which passed into English via Old French quantite. Quantum [17], a noun use of the neuter form of the Latin adjective, originally denoted simply ‘amount’; its specific application to a ‘minimum amount of matter’ was introduced by Max Planck in 1900, and reinforced by Einstein in 1905.
=> quantum

quantity (n.)

early 14c., from Old French quantite, cantite (12c., Modern French quantité) and directly from Latin quantitatem (nominative quantitas) "relative greatness or extent," coined as a loan-translation of Greek posotes (from posos "how great? how much?") from Latin quantus "of what size? how much? how great? what amount?," correlative pronominal adjective, related to qui "who" (see who). Latin quantitatem also is the source of Italian quantita, Spanish cantidad, Danish and Swedish kvantitet, German quantitat.

1. During fever a large quantity of fluid is lost in perspiration.

発熱時、大量の水分は発汗によって失われる。

2.In figure 24 "D "denotes quantity demanded and "S "denotes quantity supplied.

図24では、Dは需要量を表し、Sは供給量を表す。

3.After some initial problems，acetone was successfully produced in quantity .

最初のいくつかの問題を解決した後、ついに大量のアセトンを製造することに成功した。

4.The sheer quantity of detail would bemuse even the most clear-headed author.

これだけの詳細では、頭の冴えた作者でも困惑してしまいます。

5.In terms of quantity ，production grew faster than ever before.

数量的に見て、生産量の増加速度はこれまでのどの時期よりも速い。