TIL about this term's origins!

> act of "toeing the line," most likely from a combination of nautical discipline and athletic races. In the Royal Navy, sailors had to stand with their toes against a line on the deck for inspection, while in sports, runners line up with their toes at the starting line

And while I'm here I'll mention a couple other terms I never knew about:

Slave:

> The English word "slave" originates from the word "Slav," which was used in Medieval Latin (\(<<!nav>>sclavus<<!/nav>>\)) to refer to people of Slavic origin who were frequently captured and sold into slavery during the early Middle Ages.

Pothole:

> A (potentially legendary) origin story suggests the name came from potters digging clay from roads, creating the holes