YOU SAID:

the name was one who was never before uttered by any human

INTO JAPANESE

その名前は、これまで人間が口にしたことのない名前でした

BACK INTO ENGLISH

The name was a name no human had ever spoken before.

INTO JAPANESE

その名前は、これまで人類が口にしたことのない名前でした。

BACK INTO ENGLISH

It was a name that mankind had never heard before.

INTO JAPANESE

それは人類がこれまで聞いたことのない名前でした。

BACK INTO ENGLISH

It was a name that mankind had never heard before.