Answer:
temper
/ˈtɛmpə/
Learn to pronounce
verb
3rd person present: tempers
1.
improve the hardness and elasticity of (steel or other metal) by reheating and then cooling it.
"the way a smith would temper a sword"
improve the consistency or resiliency of (a substance) by means of a process involving heat or chemicals.
"the display is a single sheet of glass, tempered for strength"
Similar:
harden
strengthen
toughen
fortify
anneal
2.
act as a neutralizing or counterbalancing force to (something).
"their idealism is tempered with realism"
Explanation:
