あたでい : atadei | define meaning

Cognate with Kumamoto あたじゃ ataja; Kagoshima あたで atade and あたでい atadei "suddenly"; Miyazaki あだで adade and あたでえ atadee; Okinawan and Yaeyama (Hatoma) あったに attani "immediately"; as well as the Middle Japanese term あただ atada "very, awful; sudden" and あただに atadani "very, awfully; namely; suddenly". Distantly related to the standard Japanese expression あたかも【恰も・宛も】 atakamo and its variants あだかも adakamo "as it were; at that moment".