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Names of the game

The name Go is a short form of the Japanese word igo (囲碁; いご), which derives from earlier wigo (ゐご), in turn from Middle Chinese ɦʉi gi (圍棋, Mandarin: wéiqí, lit. ' encirclement board game ' or ' board game of surrounding '). In English, the name Go when used for the game is often capitalized to differentiate it from the common word go. In events sponsored by the Ing Chang-ki Foundation, it is spelled goe.

The Korean name baduk (바둑) derives from the Middle Korean word Badok, the origin of which is controversial; the more plausible etymologies include the suffix dok added to Ba to mean 'flat and wide board', or the joining of Bat, meaning 'field', and Dok, meaning 'stone'. Less plausible etymologies include a derivation of Badukdok, referring to the playing pieces of the game, or a derivation from Chinese páizi (排子), meaning 'to arrange pieces'.