UNDERPLAY • FREE-TRANSLATOR.COM • Definition of Underplay

... 'all foolish talk and ribaldry' is to be avoided, and onlookers are 'to keep silence, and to abstain from remarks and advice to the players;' and an inferior, when playing with a superior, is enjoined to exert his utmost skill, and not 'underplay himself that his senior may win'—an observation which what is called the 'flunkey class' might remember with advantage. And further, chess is not to be played 'when the mind is engaged with other objects, nor when the stomach is full after a meal, neither when overcome by hunger, ...

— Chambers's Edinburgh Journal, No. 429 - Volume 17, New Series, March 20, 1852 • Various