ergo /ˈɛɚɡoʊ/adverb 1conjunction 1noun 2forms 1 adverb1 •Consequently, therefore, or thus."I merely made an individual application of a general rule. All women love flattery—ergo, Miss Arundel liked it." — 1831 conjunction1 •therefore (especially in syllogisms) noun2 •(informal) An ergonomic factor or characteristic.I just love the ergos on this knife. It just feels great and carries so well. •(slang) Clipping of ergometer (rowing machine). formsergos