冷(ひ)やすto cool (from room temperature), to chill, to refrigerate, to calm down, to cool off, to regain one's composure, to relax, to be frightened (at), to be scared (of)

水(みず)を冷蔵庫(れいぞうこ)で冷(ひ)やす。

To chill the water in the refrigerator.

捻挫(ねんざ)した部分(ぶぶん)を氷(こおり)で冷(ひ)やしましょう。

Let's ice the sprained area.

折角(せっかく)ケーキを冷(ひ)やしておいたのに、食(た)べ忘(わす)れてしまいました。

I forgot to eat the cake even though I had chilled it.

興奮(こうふん)した頭(あたま)を冷(ひ)やすために一(いち)度(ど)教会(きょうかい)にお祈(いの)りをしに行(い)く事(こと)にした。

I decided to go to the church to pray and cool down my agitated mind.

家(いえ)に泥棒(どろぼう)が潜(ひそ)んでいた事(こと)を後(あと)から知(し)り、その恐(おそ)ろしさに肝(きも)を冷(ひ)やしました。

I learned later that there was a thief lurking in my house, and it was spine chilling.