What does 食欲がわく translate into?


I came across this phrase while playing a Japanese game:

> ダメだわ、全然食欲がわかないわ……

I was just wondering what does 食欲がわかない mean in this context, furthermore, I
want to know about what Kanji is わかない.

Appreciate the help!




食欲がわく _literally_ means "appetite springs up (in one's mind/heart)" → "have a
good appetite", "feel hungry" or "feel like eating". The わく here is like
"spring up", close to 生じる or 出る.

わく in the phrase 食欲がわく should be 湧く (rather than 沸く, "to boil") in Kanji, but
it's _usually_ written in Hiragana.

A few examples of this わく(湧く) from プログレッシブ和英中辞典:

> わく【湧く】  
>  Ⅱ〔心の中に起こる〕  
>  あなたの話を聞いて勇気［希望］が **わいた** 。  
>  Your words have filled me with courage [hope]. / What you said has given me
> courage [hope].  
>  恐怖心が **湧いた** 。 Fear sprang up in 「my heart [me].  
>  見る物すべてに興味が **わいた** 。 I took interest in everything I saw.  
>  それには全く好奇心が **わか** なかった。 It failed to excite my curiosity.

