noun
well-being (of another person)
Formal, somewhat old-fashioned expression used to inquire about or refer to another person's health or comfort, especially in letters or polite speech. Not used for oneself.
時候の候、ますます御清適のこととお喜び申し上げます。
In this season, I am delighted to hear that you are in increasingly good health.
先生の御清適を心よりお祈り申し上げます。
I sincerely pray for your well-being, teacher.