やっと
hiyatto

Adverb
Suru Verb

1. feeling a sudden chill; feeling a shiver

Usually Written in Kana
Adverb
Suru Verb

2. feeling sudden surprise (fright, horror, etc.); shuddering

Usually Written in Kana
くるま てついた路面 ろめん すべった ときは「ひやっ」とした。
kurumaga itetsuita romen'o subetta tokiwa"hiyat"to shita.
It was frightful when my car skidded on the ice.