tridem
n.— «The non-steering wheels in front of the “bogies” are called “pusher axles” and wheels behind the “bogies” are called “tag axles.” They are single wheels. And they are for wieght regulations. If there are three drive axles in a row they are called a “tridem” instead of “bogie.”» —“Fabulous Peterbilt rigids. Biglorryblog shows the pride of Paccar!” Big Lorry Blog (United Kingdom) Feb. 20, 2008. (source: Double-Tongued Dictionary)
Further reading
The English adjective fastuous comes from Latin fastuosus, meaning “proud or haughty,” and applies to someone who is “characterized by excessive pride, vanity, or self-importance.” Fastuosity refers to “an ostentatious...
What’s the best way for someone busy to learn lots of new words quickly for a test like the GRE? Looking up their origins can help. Or, record yourself reading the words and definitions and play them back while you’re doing other chores...