Ergon What? er⋅gon    [ur-gawn] /ˌɜrˈgɔn/ –noun 1. function; purpose; raison d'être; role. 2. the reason for which something exists or is done, made, used, etc. log⋅ic    [loj-ik] /ˈlɒdʒɪk/ –noun 1. system or principles of reasoning. 2. reason or sound judgment, as in utterances or actions. 3. science that investigates the principles governing correct or reliable inference. en⋅ter⋅prises    [en-ter-prahy-ziz/] /ˈɛntərˌpraɪzɪz/ –noun 1. projects undertaken, esp. ones that are important or difficult or that require boldness or energy. 2. plans for such projects. 3. engagement in such projects. 4. companies organized for commercial purposes; business firms.