noun
your letter; your esteemed letter
Formal honorific term used to refer respectfully to another person's letter. Common in written correspondence and formal speech.
先日は尊翰をいただき、ありがとうございました。
Thank you for your letter the other day.
尊翰の内容について、ご返事申し上げます。
I am writing to reply to the contents of your esteemed letter.
Composed of 尊 (respect, honor) and 翰 (writing brush, letter). The exact historical derivation is uncertain, but the spelling is conventionally associated with respectful reference to another's letter.