練れん功こう

noun

skills acquired through hard training; feats of practice

Martial arts term referring to abilities or achievements gained through rigorous, disciplined practice.

• 彼かれの練れん功こうは、長なが年ねんの厳きびしい修しゅ行ぎょうの賜たま物ものだ。

  His skills acquired through hard training are the fruit of many years of rigorous practice.