bolster

• n.サポート; ボルスター
• vt.サポート; ボルスター
• n.（ボルスター）人名；（英）Bolster

語源はballと同じで、もともとは膨らんだクッション、枕、パッドなどを指し、主に名詞として使われた。後に、支える、保護するという動詞として使われるようになった。

bolster

bolster: [OE] The idea underlying bolster ‘long pillow’ is of something stuffed, so that it swells up. It comes from a prehistoric Germanic *bolstraz, which was a derivative of *bolg-, *bulg- (source also of bellows, belly, billow and possibly bell, bellow, and bold). German has the related polster ‘cushion, pillow’.
=> bell, bellow, belly, billow, bold

bolster (v.)

mid-15c. (implied in bolstered), "propped up, made to bulge" (originally of a woman's breasts), from bolster (n.). Figurative sense is from c. 1500, on the notion of "to support with a bolster, prop up." Related: Bolstering.

bolster (n.)

Old English bolster "bolster, cushion, something stuffed so that it swells up," especially "long, stuffed pillow," from Proto-Germanic *bolkhstraz (cognates: Old Norse bolstr, Danish, Swedish, Dutch bolster, German polster), from PIE *bhelgh- "to swell" (see belly (n.)).

1. Britain is free to adopt policies to bolster its economy.

英国は経済振興のために自由に政策を立てることができる。

2.The high interest rates helped to bolster up the economy.

高金利は経済をより安定させる。

3.He tried to bolster up their morale.

彼は彼らの士気を奮い立たせるために尽力した。

4.Pillars bolster the roof.

柱支持屋根.

5.His re-creation of the city is credible，with a substratum of fact to bolster the fiction.

彼はこの町の歴史の再現に信頼性があり、架空の小説のストーリーはいくつかの事実を支持として隠している。