unavailable energy

In science, energy converted into a form that is unavailable for work. Today, we'll be studying the unavailable energy in this system.

Name	Pronounced	Usage
Ljuben	-	Macedonian
Antonis	-	Greek
HÁKon	-	Ancient Scandinavian, Icelandic
Violette	-	French
Frodo	FRO-do (English)	Literature
Karp	KAHRP	Russian