stillness
意味
- 静けさ,静寂
語源
英語の原文（Wiktionary）
From Middle English stilnesse, from Old English stilnes (“stillness, quiet; absence of noise or disturbance, release, relaxation; silence, abstention from speech; absence of disturbance or molestation, tranquility, peace, security; that which appeases”), equivalent to still + -ness.