Attachment To
Obsession, Clinging To
noun, verbal noun
You tenaciously wear something. You have some kind of attachment to it. You can't let go. It's an obsession, after all, and you just can't stop clinging to it!
執着 usually refers to an unhealthy or excessive attachment to something. An obsession with money, dwelling on the past, or even persisting in your own narrow-minded beliefs — these are all kinds of 執着.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
異常なほどお金に執着する男の小説を書いてみたいんだよね。
I'd like to write a novel about a guy who has an abnormal obsession with money.