安き is read as やすき (yasuki) and means rest.
やすき
yasuki
あんしん
peace of mind
やすうり
bargain sale
やすい
cheap
あんじゅう
being content with one's present position
やすもの
cheap article
やすっぽい
cheap-looking
あんらくし
euthanasia
やすらぎ
peace (of mind)
やすらぐ
to feel at ease
やすあがり
やすらか
peaceful
あんらく
comfort