And on the subject of old mechanical engineering terms and how they have changed over the years.
In an old textbook I have from the mid 1800s is a treatise on adjusting holes to size with a "rimmer", today that has become reamer.
The other thing that often causes confusion is the American terminology and the English for the same item.
Drill rod = silver steel/tool steel, as it is/was used for making drills and cutting tools.
Wrist Pin = Gudgeon Pin
Piston Pin = Little End Pin
Circlip = Snap Pin
And there are dozens of others.