English
temperer
From temper + -er.
Formed from temper + -er
Proto-Indo-European *temp- ‘to stretch, string’
…
Latin tempus ‘time, fit season’
Latin temperō ‘(transitive) to divide or proportion duly, to…’
Old English ġetemprian ‘to temper, moderate’
Middle English temperen
English temper
Today it means
noun A person who tempers (in any meaning).
Language periods are conventional ranges, not dates for this word.
Etymograph / temperer