Medicinal water - Yakusui

Japanese: 薬水 - やくすい

[1] [noun] Water that has medicinal properties. *Toraakirahon Kyogen: Medicinal Water (late Muromachi period - early modern period) "The crowds of nobles and common people gathered together to drink the medicinal water." [2] Kyogen. Various schools. It is a substitute for the Noh play "Yoro", but it can also be performed independently. The story is about a grandfather living in Motosu , Mino Province, who goes to drink from a spring of the elixir of immortality that springs up in the nearby mountains and becomes young again. However, in the Izumi school, the story ends with the grandfather drinking three cups and his back straightening out, while in the Okura and Sagi schools, the story ends with the grandfather drinking too much and becoming an infant. The Sagi school's "Yoro Water" and "Kikusui Soji" are similar pieces that deal with the same theme.

Medicinal water

〘 noun 〙 Liquid medicine. Also, medicinal water. Water remedy.

Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information

Japanese:

[1] 〘名〙薬になる水。※虎明本狂言・薬水（室町末‐近世初）「貴賤群集をなひて、薬水をのむといふほどに」[2] 狂言。各流。能「養老」の替間(かえあい)であるが、独立しても演じられる。美濃国本巣(もとす)に住む祖父(おおじ)が、近くの山奥にわき出た不老不死の薬の泉を飲みに出かけ若がえるという筋。ただし和泉流では、三杯飲んで腰がまっすぐになるということで終わり、大蔵・鷺流では飲みすぎて幼児になるということで終わる。鷺流の「養老水」「菊水祖父」は同じ主題を扱った類曲。