Refers to where a person comes from, including their birthplace or background. Often used in formal or biographical contexts.
His origin is not clear.
Focuses on family background, social standing, or bloodline. Often used when discussing someone's pedigree or hereditary status.
この作家の出自は地方の小さな町だ。
This writer's birthplace is a small town in the countryside.
He is of samurai lineage.
Tracing her ancestry leads back to an old aristocratic family.
出自 is a formal term for a person's lineage or birth background, while ルーツ is a more casual, everyday word that can also apply to non-personal things like music or culture.
出自 is a formal, literary word for one's lineage or origin, while 生まれ is the ordinary word for where or when someone was born.
Compound of 出 (しゅつ, 'come out') and 自 (じ, 'self'), literally meaning 'where one comes from'. The exact historical derivation is uncertain, but the kanji combination naturally conveys origin or background.