ふだい

ふだい【譜代･譜第】

successive generations; 〔代々の臣下〕 a hereditary vassal.

～の hereditary.

譜代相伝 hereditary succession.

譜代(の)大名 a daimyo in hereditary vassalage to the Tokugawas; a daimyo from one of the clans which originally supported the Tokugawa (and continued in hereditary vassalage).