noun
posthumous writings
Refers to literary works or manuscripts left behind by a deceased author, often published after their death.
彼の遺編がようやく出版された。
His posthumous writings were finally published.
遺稿 also means posthumous manuscripts, but is more common and often refers to drafts or unfinished works, while 遺編 can imply a compiled collection.
Compound of 遺 (い, 'left behind') and 編 (へん, 'compilation' or 'volume'), referring to writings left by the deceased.