1860 Mercantile Marine Mag. 7 295 A kind of liquor..a deadly stuff, expressed from the ki root.

1889 Tablet 18 May 762/2 Drinking fermented ki-root beer, home made alcohol.

1893 G. W. Knox in Trans. Asiatic Soc. Japan 20 11 Ki by no means necessarily implies personality. Sometimes it is described as if it were the essence, the inner power, of all things. It is not ‘spiritual’ in our modern and defined use of the word.

1913 K. Hoshino tr. E. Kaibara Way of Contentm. (1979) 121 The way to preserve health is to control and regulate this Ki.

1978 K. Tanahashi & R. Maurer tr. K. Uyeshiba Aikido 86 Unless you are filled with enough Ki to get the opponent into your movement, it is impossible to unbalance his body with your body-turning.

1979 S. Yamamoto Barefoot Shiatsu 41 In shiatsu we stimulate the body so it will receive and utilize ki.

1988 Black Belt Internat. No. 5. 79/3 Just about every martial art tradition has ki as a crucial element in its approach to practice.

1996 S. Lavery et al. Hamlyn Encycl. Complementary Health 22/2 Practitioners apply pressure to points of tsubo on the meridians to stimulate ‘ki’.

2005 D. Cruickshank Around World in 80 Treasures 83 Beliefs about correct orientation and propitious placing that relate to the Shinto vision of the power of earth energy and mental energy or ki.