跡継ぎ

プログレッシブ和英中辞典(第4版)

あとつぎ【跡継ぎ】

❶〔家名を継ぐ者〕an inheritor, an heir；〔女〕an heiress

❷〔芸道，学問などの後継者〕a successor; an heir

一番弟子の彼がその派の跡継ぎになった
As the foremost disciple, he became heir to the leadership of that school.

跡継ぎがないので彼の芸は一代限りで消えてしまうだろう
Since he has no disciples to succeed him, his art will die with him.

出典　小学館「プログレッシブ和英中辞典(第4版)」