lexidiem
n.— «Lexidiem. n. sing. lek-si’-dee-im. (preferred) lek-si-dee’-im (altern. accepted) 1. Word of the day. [Modern American English, from Greek lexis (word) and Latin diem (day), reflecting the hodgepodge of international roots that make up Modern American English words].» —“Idea: Lexidiem, the word of the day” by Davie Friedman Ironic Sans May 31, 2006. (source: Double-Tongued Dictionary)
Further reading
If someone urges you to spill the tea, they probably don’t want you tipping over a hot beverage. Originally, the tea here was the letter T, as in “truth.” To spill the T means to “pass along truthful information.” Plus...
When you had sleepovers as a child, what did you call the makeshift beds you made on the floor? In some places, you call those bedclothes and blankets a pallet. This word comes from an old term for “straw.” And: What’s the story...