The correct spelling is deluxe.
The word deluxe is derived from French, where it means “luxurious” or “of high quality.” It is commonly used in English to describe products, services, or experiences that are considered premium or superior in terms of quality or features.
The spelling delux is incorrect and is a common misspelling. The correct form, deluxe, has become standard and is widely used in marketing to imply an upgraded or more luxurious version of something (e.g., deluxe edition, deluxe room).
To sum it up:
- Deluxe is the proper spelling.