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> 頭痛に頭を掻き毟り{むしり}つつ、震えるもう片方の手が宙を泳いだ。

Does もう modify 泳いだ here, as in "already moved (lit. swam through air/space)"?
So that "while X (tearing hair with one hand due to headache), the trembling
other hand **already** moved"?
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2015-06-12T12:16:10.350
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2015-06-12T12:38:30.220
2015-06-12T12:38:30.220
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question
grammar adverbs parsing
What role does もう play in this sentence?
The もう here is the same as the one in もう一つ "another one".

In your example sentence, [he] is scratching off his head with one arm. **The
other** , shaking arm [was trying to swim in the air or whatever].

So, もう片方の手 means "the other arm" (as opposed to "the one arm").

This もう can be used with arms, items, people, anything. Like

> 二人の男の人を見た。一人は帽子をかぶって、 **もう** 一人は杖をついていた。  
>  I saw two men. One wearing a hat, the other one with a walking stick.
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2015-06-12T12:36:44.177
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2015-06-12T12:36:44.177
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answer