also: はうじん
noun
kind intentions; goodwill
Honorific noun used to refer respectfully to another person's kind thoughts or goodwill. Often appears in formal or written contexts.
ご芳心に深く感謝いたします。
I am deeply grateful for your kind intentions.
皆様の芳心を賜りますようお願い申し上げます。
We humbly request your kind consideration.
好意 is a general term for goodwill or favor, while 芳心 is an honorific expression specifically used to show respect toward someone else's kind intentions.
Compound of 芳 (fragrant, favorable) and 心 (heart, mind), used honorifically to refer to another's kind thoughts. The exact historical derivation is uncertain.