'inconclusively-gathered' originates from the combination of 'inconclusive' and 'gathered'. 'Inconclusive' comes from Latin 'inconclusus', where 'in-' meant 'not' and 'conclusus' meant 'closed or concluded'. 'Gathered' comes from Old English 'gadrian', meaning 'to bring together'.

'inconclusively-gathered' evolved from the combination of the words 'inconclusive' and 'gathered', which were used separately in Middle English and later combined in modern English.

Initially, 'inconclusive' meant 'not leading to a conclusion', and 'gathered' meant 'collected'. Together, they evolved to describe something collected without a definitive result.