Attachment (noun)

1. A feeling of affection or attachment to someone or something.
2. A device or part that is fixed to something in order to make it more useful or effective.

Origin:

Late middle english: from old french atachement, from atacher "fasten", from a- (from latin ad "to") + tacher "stain" (from latin taxare "arrange, rat.e")

Examples:

1. He had a strong attachment to his hometown.
2. She had an attachment to her childhood teddy bear.
3. The attachment to the vacuum cleaner was used to clean upholstery.
4. The attachment to the power drill was used to create screw threads.
5. The email had an attachment with the document.