Thread: "Cozu" meaning

Hi everyone, i was asked to translate a text, but i am stucked on a word which meaning i just can´t understand.

Please, can you clarify me what does "cozu" mean on this sentence?

"A twinge of guilt annoyed him. He’d been stunned enough times to know
she’d have a vicious headache when she woke up.

But what other choice did he have? She seemed to be a determined
little cozu.

Shaking his head in bitter amusement, he knelt beside her to check
her pulse. Satisfied he hadn’t hurt her, he took a good look at her
peaceful features. (...)"

Thanks in advance!

Hi, Vicente. Thanks a lot for your help!