How do you say karli in iroquoian?

There is no such language as Iroquoian. "Iroquoian" refers to a group of more than a dozen different languages. You would have to be more specific.

Here is a list of Iroquoian languages. Note that People's names are usually not translatable:

1. Seneca
2. Cayuga
3. Onandaga
4. Mohawk
5. Oneida
6. Susquehannock
7. Wyandot
8. Erie
9. Tuscarora
10. Nottoway