Definition of "threepenny" [three•pen•ny]

• Worth or priced at threepence. (adjective)
• Very small; trifling. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The name of the small silver threepenny coin, known as the threepenny joey or just joey, had the origin in another small coin, a fourpenny piece or groat."
• "To-day, however, he overhauled the contents of the trays with rather more curiosity than usual; not because he expected to find a pearl of great price among the dust and dog's ears of the "threepenny" tray."
• ""threepenny" tray -- one a fragment of _Robinson Crusoe_, the other Part"