In the song Chercher by Kotoko there's the line

心配性{しんぱいしょう}と言{い}われても ハラハラのしどおしよ

And in a subtitled video it gets translated to: "Even if you say I'm a worrier, you're anxious with me"

It all makes sense expect that どおし part... Is it supposed to be 同士{どうし} ? But if so, how come it's written with a different spelling that my IME doesn't acknowledge?

I tried researching this and the best I found is this https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1216623117 but I don't know. Does anyone know what this どおし is supposed to be and why it gets spelt this way?

1 Answer 1


It is from the verb 「通{とお}す」.

「Verb in 連用形{れんようけい} (continuative form) + 通す」


"to continue [verb]-ing to the end"

In 「しどおし」, the first 「し」 is the 連用形 of the verb 「する」. 「どおし」is the 連用形 of 「通す」. The と-to-ど change is rendaku.

Thus, 「どおし」 has nothing to do with「同士」 -- none.

「通す」 is written 「とおす」 in kana, not 「とうす」.

My TL of the line:

"Even if they call me a natural worrier, I just can't stop feeling uneasy!"

Other examples:

「朝まで飲み通す」 = "to keep on drinking till the dawn"

「9回まで投げ通す」 = "to continue to pitch till the 9th inning"

「仕事をやり通す」 = "to completely finish one's work"

  • 1
    I think the reason for the rendaku is that -どおし is a different pattern than -とおす. Commented Nov 26, 2019 at 19:23
  • 2
    「しどおし」 is a noun here though it is made of two verbs originally. 連用形 often functions as a noun as well. ハラハラ is also used as a noun here though it is originally an onomatopoeia. So, we have 「Noun + の + Noun + sentence-ender よ」, which should make perfect sense unless you are a beginner. Look at the recent question here japanese.stackexchange.com/questions/73236/… and you will find that 泳ぎ (連用形 of the verb 泳ぐ) is used as a noun. The use of onomatopoeias as nouns is a common phenomenon in informal speech. (continued)
    – user4032
    Commented Nov 26, 2019 at 23:55
  • 2
    We say things like ドキドキが止まらない, このワクワクはあなたのせいよ!, etc.
    – user4032
    Commented Nov 26, 2019 at 23:57
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    If you are still "seeing" してよ or しよ at the end after reading my answer, I probably failed completely. I am outta here.
    – user4032
    Commented Nov 27, 2019 at 0:36
  • 1
    no your answer makes sense lol, thank you!
    – OtheJared
    Commented Nov 27, 2019 at 16:11

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