The field of coin collecting was honored during the nudiustertian morning when the word "numismatics" was selected as the word of the day on wordsmith.org. The weeks theme is words that start with the "new" sound. Other words in the category include pneumonic and nouveau pauvre
For those unfamiliar with the word "nudiustertian" it means of or relating to the day before yesterday. I have never used the word before now, and I imagine I will seldom use it again.
The word numismatics, of course, I use everyday at least thrice.