English
ergometer
From ergo- + -meter.
A compound of ergo- + -meter
Proto-Indo-European *werǵ- ‘to make’
Proto-Indo-European *wérǵom ‘work’
Proto-Hellenic *wérgon ‘work’
Ancient Greek ἔργον ‘work or deed of war’
English ergo-
Today it means
noun A dynamometer used to measure the work done by muscles
Language periods are conventional ranges, not dates for this word.
Etymograph / ergometer