\ ENTH \ , adjective;
1.Being the last in a series of infinitely decreasing or increasing values, amounts, etc.
2.(Of an item in a series of occurrences, planned events, things used, etc., that is thought of as being infinitely large) being the latest, or most recent.
I adore my niece pup to the nth degree. I love when she puts her paw on my knee. I would give her the world, or a piece of chicken, which is usually what she wants.