also: うぶだし
noun, noun or participle which takes 'suru', intransitive verb
Refers to something appearing for the first time, such as a work, term, or person in a particular context. Often used in publishing, media, and academic contexts.
この言葉の初出は江戸時代の文献だ。
The first appearance of this word is in a document from the Edo period.
彼の小説が雑誌に初出したのは十年前だ。
His novel first appeared in a magazine ten years ago.