Let's save a little money for when the crucial moment comes.
I'm saving money for when the time comes.
いざとなれば、彼はきっと助けてくれるだろう。
If it really comes down to it, he'll surely help me.
Now, let's go!
Kana-only adverb/interjection; no kanji spelling is given.
The origin is uncertain; it is a native Japanese word with no clear kanji etymology.