From O'Reilly's Ethernet by Spurgeon (1e, 2000), Chapter 18 has:

> Ethernet bridging technology was first delivered in the mid-1980s, typically in the form of a two-port devices that could help segment a large Ethernet into separate Ethernet Lans. The devices linked two LANs, forming a bridge between them, hence the name. […] A device with more than two ports of bridging became know as a switching hub. Nowadays, even two-port bridges are often called switches.

> At their most basic level of moving frames from one LAN to another, bridges and switching hubs operate identically. The major difference is in the increased number of ports and the enhanced capabilities of switching hubs, which led to a change in the marketing of these devices. Vendors wanted some way to differentiate a low-end bridge that just does basic bridging from the more expensive and flexible switching hub products that provide many more ports and more capabilities than basic bridges.

Circling back to Chapter 2:

> There is another kind of hub called a switching hub. Switching hubs use the 48-bit Ethernet destination addresses to make a frame forwarding decision from one port of the switch to another. As shown in Figure 2-3, each port of a switching hub provides a connection to an Ethernet media system that functions as entirely separate Ethernet LAN.

* https://www.oreilly.com/library/view/ethernet-the-definitive...

There's a second edition of the book (2014):

* https://www.oreilly.com/library/view/ethernet-the-definitive...

as well as the book Ethernet Switches:

* https://www.oreilly.com/library/view/ethernet-switches/97814...

If anyone wants to get into the weeds of Ethernet specifically, O'Reilly has a good book on the subject that has more detail than you'll ever want to know about (short of reading the IEEE standards directly):

* https://www.oreilly.com/library/view/ethernet-the-definitive...