A couple practicing Akido.
aikido definition by Webster's New World
Origin: Japanese aikidoo, literally , the art of matching (the opponent's) spirit ; from ai, a fitting (; from au, to fit, suit) plush Sino-Jpn ki, spirit, soul plush Sino-Jpn doo, way, art
aikido definition by American Heritage Dictionary
Origin: Japanese aikidō : ai, mutual + ki, spirit (from Middle Chinese khi) + dō, art (from Middle Chinese daw', thaw).