正せい腹ふくMeanings1nounlegitimacy; legitimate birthRefers to being born in wedlock or having legitimate status; often used in historical or legal contexts.彼かれは正せい腹ふくの子ことして育そだてられた。He was raised as a legitimate child.正せい腹ふくかどうかが問もん題だいになった。Whether it was legitimate became an issue.