What does the word 「ならんとな」mean in this sentence?


It is said by an adult man to a young man.

> おれっちのみたこと あの子も かなーりの盗賊のうでを持っていそうだったぜ。 まあ あの子に負けねぇおとこには **ならんとな** 。

In my understanding, the word 「ならんとな」 consists of 「ならない」, which means 'not
become', and particle 「とな」to emphasize his statement.

However, when I tried to translate the later sentence, it turned out like
this.

> Well, you should not become a man who does not lose to that kid.

, which I think it looks opposite to my sense.




It's a little bit of a tricky word. A proper translation would be:

> From what I've seen, he/she seems to be a pretty good bandit too. Well, I
> (or you)'ll have to be as good as him/her.

ならんとな is a corrupted form of "ならないと(いけない/だめだ)な".

So (if I'm understanding right) both of your ideas are (sadly) wrong.

