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.
Haidamaka
Other more ancient exonyms of the same haidamaks include "levenetz" and "deineka". Equivalents of "haidamaka" include "opryshok" in Ukrainian Galicia, and "hajduk" in the Central Europe and the Balkans. The first people to use the term "Haidamaki" to refer to themselves fought in Ustim Karmaluk's uprising of the early 1830s.