noun
compassion; merciful heart; benevolence
A somewhat formal or literary term for a compassionate, merciful disposition. Often used in Buddhist or ethical contexts.
彼の行動は深い慈悲心から出たものだ。
His actions came from a deep sense of compassion.
慈悲心を持って人に接することが大切だ。
It is important to treat others with a merciful heart.
思いやり is a more everyday word for consideration or thoughtfulness, while 慈悲心 is more formal and often carries a religious or philosophical nuance.
Compound of 慈悲 (mercy, compassion) and 心 (heart, mind). The exact historical derivation is uncertain, but the term is well-established in Buddhist and literary Japanese.