practice

• n. 練習；訓練；慣習
• vi.
• vt.

ラテン語のpracticare「行う」、practice「練習する」、peril「実行する」、ギリシャ語のprassein「行う」、「行動する」、おそらくPIE*per「前進する」、「前進する」、「試みる」から。

practice

practice: [15] The ultimate source of practice is Greek prássein ‘do, practise’. From its base *prak- were derived the noun praxis ‘doing, action’ (source of English praxis [16]) and the adjective praktós ‘to be done’. On this was based praktikós ‘concerned with action, practical’. This passed into English via late Latin practicus as practice [14], which was later superseded by practical [17].

From practicus was derived the medieval Latin verb practicāre, later practizāre. This passed into English via Old French practiser as practise [15]. The derived noun practise was altered to practice in the 16th century, on the analogy of pairs like advice/advise.
=> practical, practise, pragmatic, praxis

practice (v.)

c. 1400, "to do, act;" early 15c., "to follow or employ; to carry on a profession," especially medicine, from Old French pratiser, practiser "to practice," alteration of practiquer, from Medieval Latin practicare "to do, perform, practice," from Late Latin practicus "practical," from Greek praktikos "practical" (see practical).

From early 15c. as "to perform repeatedly to acquire skill, to learn by repeated performance;" mid-15c. as "to perform, to work at, exercise." Related: Practiced; practicing.

practice (n.)

early 15c., practise, "practical application," originally especially of medicine but also alchemy, education, etc.; from Old French pratiser, from Medieval Latin practicare (see practice (v.)). From early 15c. often assimilated in spelling to nouns in -ice. Also as practic, which survived in parallel into 19c.

1. His hands were rough and calloused，from years of karate practice .

長年空手を練習してきたので、彼の両手はざらざらしていて、繭で覆われていた。

2.The ministers expressed dismay at the continued practice of ethnic cleansing.

部長たちは、継続的に行われる人種洗浄への懸念を表明した。

3.In practice a graduate tax is an administrative nightmare.

卒業税は具体的には行政の悪夢に匹敵する。

4.Educational practice is liable to sudden swings and changes.

教育実践には突然の変化と改革がよく見られる。

5.All members of the association adhere to a strict code of practice .

協会のすべてのメンバーは、厳格な行動規範のセットに従っています。