How do I translate donations fields on Accounts and Contacts to Italian

Thanks David. It has worked. Here are the steps I took.

In Setup, searched for Translation Language Settings and added Italian to the list of supported languages. 

Then clicked on "Translate" menu.

Package - Nonprofit Success Pack

Language - Italian (The language I want to translate my fields to)

Setup Component - Custom Field

Object - Contact

Aspect - Field Label

Double clicked in the space next to the "Master Field Label" to enter Italian values