和英辞書

孝子芋

noun

Alternative form of 孝行芋 (kōkōimo, “(Tsushima) sweet potato”)

私のおばあちゃんは、孝子芋を植えるのが好きです。

My grandmother likes to plant kōkōimo (a type of potato).

意味（1）

Alternative form of 孝行芋 (kōkōimo, “(Tsushima) sweet potato”)

[c. 1840, 성해응(成海應), 硏經齋全集, volume 14, 藷說 https://www.krpia.co.kr/viewer/open?plctId=PLCT00005160&nodeId=NODE04576055

英廟癸未。先君子入日本。李七灘匡呂書托種藷法。至對馬島佐須浦始得之。卽所稱孝子芋也。古有孝子種之養親故名。 [Korean Literary Sinitic, trad.]Yeongmyo gyemi. Seon'gunja ip Ilbon. I-Chiltan-Gwangryeo seotak jong-jeo-beop. Ji Daema-do Sasu-po si deuk ji. Jeuk soching hjoya-u ya. Go yu hyoja jong ji yangchin go myeong. [Sino-Korean]1763. My deceased father had went to Japan; Lee Chiltan Kwangryo sent a letter on the cultivation of potatoes; at Sasuna on Tsushima island he first attained this; namely, what is called the hyoja-u ("potato of the filial son"). There was a filial son who cultivated it to raise his parents, hence its name.