麒麟も老いぬれば駑馬に劣る
Idiom- 1even an outstanding person becomes inferior when getting old Translated by Jiyomi
Other writings and readings
騏驎も老いぬれば駑馬に劣る
expressions (phrases, clauses, etc.) · Godan verb with 'ru' ending
JMdict entry 2843476. Source and licence.