She was sunk in deep grief.
Even after time passed, that sadness did not disappear.
Only when written 愛しみ
Archaic noun use restricted to the spelling 愛しみ. It reflects an older sense of かなしみ meaning affection or tender love, not the modern ordinary meaning 'sadness'.
In old writing, 愛しみ is sometimes used as a noun meaning affection.
She was sunk in deep grief.
He gradually overcame his sorrow.
The whole town was enveloped in sorrow.
I felt a strong sense of sadness on hearing the news.
She was enduring her grief alone.
悲しみ is the everyday word for sadness, while 嘆 is a more formal, literary term for deep lamentation or sighing sorrow.
悲しみ is the broad, everyday word for sadness, while 悲痛 specifically stresses intense, pain-like anguish.
悲しみ is the common, plain word for sadness, whereas 憂い carries a heavier, more literary or classical nuance of sorrow.