value: [14] To have value is etymologically to be ‘strong’ or ‘effective’, and hence to have ‘worth’. The word was borrowed from Old French value, a noun use of the feminine past participle of valoir ‘be worth’. This was descended from Latin valēre ‘be strong, be of value’, which also produced English avail [13], available [15] (which originally meant ‘advantageous’, and was not used for ‘accessible for use’ until as recently as the 19th century), convalesce [15], valency [19], valiant [14], valid, and valour [14]. => available, convalesce, valency, valiant, valid, valour
value (n.)
c. 1300, "price equal to the intrinsic worth of a thing;" late 14c., "degree to which something is useful or estimable," from Old French value "worth, price, moral worth; standing, reputation" (13c.), noun use of fem. past participle of valoir "be worth," from Latin valere "be strong, be well; be of value, be worth" (see valiant). The meaning "social principle" is attested from 1918, supposedly borrowed from the language of painting. Value judgment (1889) is a loan-translation of German Werturteil.
value (v.)
mid-15c., "estimate the value of," also "think highly of," probably from value (n.). Related: Valued, valuing.
例文
1. If they value these data，let them pay for them.
彼らはこれらのデータを重視するなら、彼らにお金を出して買わせます。
2.Over a given period，the value of shares will rise and fall.
株式の価値は、ある特定の時期に下落することがあります。
3.She 's kicked her drug habit and learned that her life has value .
彼女はすでに毒をやめ、命の大切さを認識している。
4.There was a sharp fall in the value of the pound.
ポンドが大幅に下落した。
5. Both offer excellent value at around ￡90 for a double room.