Etymology of the English word tron
the English word
tronderived from the Old French word
tronederived from the Latin word
thronus (Lamentations; ; dirge)
derived from the Greek word
thronos, θρόνος (a stately seat ('throne'); by implication, power or (concretely) a potentate)
derived from the Proto-Indo-European root
*dher-derived from the Latin word
trutina (balance, pair of scales)
derived from the Greek word
trutaneDate
The earliest known usage of tron in English dates from the 15th century.