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台無しにする

ruin: 何かに損害を与えたり完全に否定的な影響を与えてその価値をすべて失わせ, それを使えない状態や再起不能な状態にしてしまうことをいう

spoil: 何かよい状態のものを悪い状態にして, 台無しにしてしまうことをいうが, あるべき状態をわずかに損なっている場合にも用い, ruinより意味は弱い

DECAY, DECOMPOSE, ROT, PUTREFY, SPOIL mean to undergo destructive dissolution.

DECAY implies a slow change from a state of soundness or perfection.

e.g. a decaying mansion

DECOMPOSE stresses a breaking down by chemical change and when applied to organic matter a corruption.

e.g. the strong odor of decomposing vegetation

ROT is a close synonym of DECOMPOSE and often connotes foulness.

e.g. fruit was left to rot in warehouses

PUTREFY implies the rotting of animal matter and offensiveness to sight and smell.

e.g. corpses putrefying on the battlefield

SPOIL applies chiefly to the decomposition of foods.

e.g. keep the ham from spoiling

verb (past and past participle spoiled or chiefly British spoilt | spoilt | ) with object

1. diminish or destroy the value or quality of:

«…に対して» 〈物･事〉をだめにする, 台なしにする, 損なう, 役に立たなくする «for»

e.g. I wouldn't want to spoil your fun

e.g. a series of political blunders spoiled their chances of being re-elected.

prevent someone from enjoying (an occasion or event):

e.g. she was afraid of spoiling Christmas for the rest of the family.

no object (of food) become unfit for eating:

〈食べ物が〉だめになる, 腐る

e.g. I've got some ham that'll spoil if we don't eat it tonight.

2. harm the character of (a child) by being too lenient or indulgent:

(好き放題にさせて)〈特に子供〉を甘やかす, 増長させる, だめにする

e.g. the last thing I want to do is spoil Thomas

e.g. (as adjective spoiled) : a spoiled child.

treat with great or excessive kindness, consideration, or generosity:

〈人〉を手厚くもてなす, 大切に扱う; 〈客など〉にいいものを提供する

e.g. breakfast in bed—you're spoiling me!

3. no object (be spoiling for) be extremely or aggressively eager for:

｟くだけて｠ ; 〖be ～ing〗 【けんかなどをしたくて】うずうずしている «for» .

e.g. Cooper was spoiling for a fight.

4. archaic rob (a person or a place) of goods or possessions by force or violence.

｟書･古｠ «…を» 〈人〉から奪う(rob) «of» (!過去形･過去分詞はspoiled)

1. (usually spoils) goods stolen or taken forcibly from a person or place:

｟かたく･文｠ ; 〖通例the ～s〗 戦利品; 強奪, 略奪品

e.g. the looters carried their spoils away.

2. waste material brought up during the course of an excavation or a dredging or mining operation.

(掘削作業などで出た土砂などの)廃物

Middle English (in the sense ‘to plunder’): shortening of Old French espoille (noun), espoillier (verb), from Latin spoliare, from spolium ‘plunder, skin stripped from an animal’, or a shortening of despoil.