My debt has now reached one million yen.
If you write me an IOU, I don't mind loaning you some money.
In Japanese, there are a lot of words that have been borrowed from other languages.
The task of borrowing something is when you're borrowing something. It's also when you get a loan.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.