adverb, adverb taking the 'to' particle
calmly; peacefully; painlessly; comfortably
Rare literary adverb describing an action done without difficulty, stress, or pain. Often used with verbs like 眠る, 暮らす, or 死ぬ. In modern Japanese, 安らかに or 楽に are more common.
My grandmother passed away peacefully.
彼は安々と暮らしている。
He lives comfortably and without worry.
Alternate kanji form without iteration mark; equally rare.
A reduplicated adverbial formation from the stem やす of 安い; 々 is the written repetition mark representing the repeated element.