Eureka (word)
"Eureka" comes from the Ancient Greek word "heúrēka", meaning "I found (it)", which is the first person singular perfect indicative active of the verb "heuriskō" "I find". It is closely related to heuristic, which refers to experience-based techniques for problem solving, learning, and discovery.
List of English words of Russian origin
Ushanka (Russian: уша́нка ), or shapka-ushanka the word derives from Russian "уши" "ushi" - ears (and also flaps of ushanka) - ear-flaps hat, a type of cap (Russian: ша́пка shapka) made of fur with ear flaps that can be tied up to the crown of the cap, or tied at the chin to protect the ears from the cold.