English
kilo-joule
From kilo- + joule.
Proto-Indo-European *ǵʰes- ‘hand’
Proto-Indo-European *ǵʰesliyoy
Proto-Hellenic *kʰehliyoi ‘thousand’
Ancient Greek χίλιοι ‘one thousand’
English kilo-
Today it means
noun One thousand (10³) joules. Symbol: kJ or KJ.
Language periods are conventional ranges, not dates for this word.
Etymograph / kilo-joule