curve

• n. 曲線; 曲がる; 曲線球; 曲線図
• vt. 曲げる
• vi. 曲がる
• adj. 曲がる; 曲線的

PIE*skerの「曲げる」「回す」が語源。

curve

curve: [15] Curve has a wide circle of relations in English. It comes from Latin curvus ‘curved’, which had connections with Greek kurtós ‘curved’, Greek korōnos ‘curved’ (source of English crown), and Greek kírkos ‘ring, circle’ (source of English circle). When English acquired it, it was still an adjective, and English did not convert it into a noun until the 17th century.
=> circle, crown, curb

curve (v.)

early 15c. (implied in curved), from Latin curvus "crooked, curved, bent," and curvare "to bend," both from PIE root *(s)ker- (2) "to turn, bend" (see ring (n.)).

curve (n.)

1690s, "curved line," from curve (v.). With reference to the female figure (usually plural, curves), from 1862; as a type of baseball pitch, from 1879.

1. Was it just a temporary blip on an otherwise healthy growth curve ？

これは本来良好な成長曲線における一時的なずれではないでしょうか。

2.Both he and the crew are on a steep learning curve .

彼もメンバーたちも勉強が速い。

3.The slope increases as you go up the curve .

カーブを登ると、道はますます険しくなってきた。

4.There is a learning curve in the process of seeking employment.

就職には経験的な蓄積がある。

5.Each firm will face a downward-sloping demand curve .

各企業は需要曲線の下落に直面している。