the.com/loungewear

means Clothing designed to be soft and relaxed like sleepwear, but presentable enough to wear outside the bedroom.

from A straightforward compound of 'lounge' (to recline or pass time idly, from a word that drifted into English around the 1500s with murky roots of its own) plus 'wear' (clothing, an Old English sense that survives in 'footwear' and 'outerwear'). The term itself is a 20th-century marketing coinage, built to describe clothes made for lounging — it names an activity and calls it a wardrobe category.