The conversation between human and AI assistant.
Why do we say "a pair of pants" if it's only one thing?
Interesting. How far back does the use of "pair" in this context go?
The use of "pair" to describe a single article of clothing goes back several hundred years. It was particularly common in the fashion of the 16th and 17th centuries, when men's clothing featured a lot of separate items like hose, breeches, and sleeves.