Alternative forms 
- tempre (obsolete)
From Middle English temperen, from Old English *temprian, from Latin temperare (“to divide or proportion duly, mingle in due proportion, qualify, temper, regulate, rule, intransitive observe measure, be moderate or temperate”), from tempus (“time, fit season”); see temporal.
temper (plural tempers)
- A tendency to be of a certain type of mood.
- To have a good temper ; a bad temper.
- He has quite a (bad) temper when dealing with salespeople.
- State of mind.
- The heat treatment to which a metal or other material has been subjected; a material that has undergone a particular heat treatment.
Derived terms 
- (Heat treatment): drop forge
- To moderate or control.
- Temper your language around children.
- To heat-treat a material, especially metal or chocolate.
- Next, temper Tempering is a heat treatment technique applied to metals, alloys, and glass to achieve greater toughness by increasing the strength of materials and/or ductility. Tempering is performed by a controlled reheating of the work piece to a temperature below its lower eutectic critical temperature..
- To mix clay, plaster or mortar with water to obtain the proper consistency
- (archaic) To combine in due proportions; to constitute; to compose.