The word "teikin" originates from a historical event taken from the Ji Shi (Chief of the Ji Clan) section of "Rongo" (the Analects of Confucius) in which Confucius called to his son to stop running in a garden and encouraged him to learn poetry and etiquette, signifying teachings from father to son and home education.
尚、庭訓とは、『論語』季子篇の中にある孔子が庭を走る息子を呼び止め詩や礼を学ぶよう諭したという故事に因み、父から子への教訓や家庭教育を意味する。