I was thinking about... ... pants 🤔 Why is it "still" a pair of pants ? Like we were still in the days when we wore it per-leg basis 😂😐 Ah, fascinating how... ... the term did not advance like the garment did 👖🩳 Similar to scissors or glasses (eyewear). They are now 💥 as one tool , but are called... as they were separate. Scissors were literally two (small) blades ⚔️ operated by both hands. Each blade was held on each hand, being positioned like ⚔️ for snipping things ➡️ Now, same function, but it's advanced — blades are combined with a pin plus the holders for the fingers, conveniently can be operated by one hand — into one amazing tool, this ✂️... But still, "a pair of scissors". Glasses 👓 ... Similar to scissors and pants. Leg Tubes Let's focus on this bit. Because there is a pair of underpants . Before the Dark Ages, the concept of leg-tube was already common. Think of it as a stitched tube garment made of animal skin or fabric ...