Luxury (noun)

1. Something that provides great comfort and ease, especially an expensive or unnecessary item.
2. A state of great comfort or decadence.

Origin:

From middle english luxurie, from old french luxurie, from latin luxuria, from luxus ("excess, extravagance").

Examples:

1. Staying at a five-star hotel is considered a luxury by many.
2. The yacht was equipped with every luxury you could think of.
3. Her home was filled with luxurious furnishings and expensive artwork.
4. The company offered its employees the luxury of flexible working hours.
5. She enjoyed the luxury of a long, hot bath after a long day at work.