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.
Ukra
Ukra's nickname derives from his youth, when his thin-blond hair led to him being called "Ukrainian" ("Ucraniano" in Portuguese), which was then shortened to "Ukra".