temper

a sudden outburst of anger

“his temper sparked like damp firewood”

make more temperate, acceptable, or suitable by adding something else

“she tempered her criticism”

the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking

harden by reheating and cooling in oil

“temper steel”

change by restraining or moderating

a disposition to exhibit uncontrolled anger

“his temper was well known to all his employees”

a characteristic (habitual or relatively temporary) state of feeling

“whether he praised or cursed me depended on his temper at the time”

bring to a desired consistency, texture, or hardness by a process of gradually heating and cooling

“temper glass”

adjust the pitch (of pianos)