奥おう義ぎ秘ひ伝でん

noun

secret techniques; esoteric knowledge; mysteries

Refers to the deepest, most closely guarded secrets of an art, craft, or martial tradition. Often used in contexts like 奥義秘伝を伝授する (to impart the secret teachings).

• その流りゅう派はの奥おう義ぎ秘ひ伝でんは、一いっ子し相そう伝でんで受うけ継つがれてきた。

  The secret techniques of that school have been passed down from father to son.

• 彼かれは師し匠しょうから奥おう義ぎ秘ひ伝でんを授さずかった。

  He was initiated into the esoteric knowledge by his master.