pronoun
Humble first-person pronoun used primarily by men in letters and formal writing. Conveys self-deprecation and respect toward the recipient.
愚生は先日、貴殿のご高著を拝読いたしました。
I recently had the honor of reading your esteemed work.
愚生のつたない意見で恐縮ですが、一言申し上げます。
I apologize for my humble opinion, but allow me to say a word.