Question

What would I call my mother's cousin?

Answer 1

Your mother's cousin is your first cousin once removed. Here's a breakdown of cousin relationships:

1. Your parent's siblings' children are your first cousins.
2. The children of your first cousins are your first cousins once removed.

So, your mother's cousin is one generation removed from you, which makes them your first cousin once removed. In terms of addressing them, you can call them by their first name (if you're close) or simply refer to them as "cousin" out of respect for the familial connection.