Here's a breakdown:
* Mausolus: The Mausoleum was built in the 4th century BC by Artemisia II of Caria, in honor of her husband, Mausolus, the satrap of Caria.
* Halicarnassus: The city where the Mausoleum was built, now known as Bodrum in Turkey.
Over time, the term "mausoleum" evolved to refer to any grand tomb or memorial structure, especially one built for a notable person or family. It is derived from the name of the ruler, Mausolus, and the place where it was built, Halicarnassus, combined into "Mausoleum at Halicarnassus."