1. Clothing, especially outer garments.
2. A covering or adornment: trees with their apparel of foliage.
3. Something that decorates or covers: woods in the white apparel of winter.
4. Superficial appearance: guise.
[: from Old French apareillier, to make ready: from Latin apparāre, to prepare]
Source: http://www.dictionary.com/browse/apparel (freely derived 11-4-2016)