'indifferently-gathered' originates from the combination of 'indifferent' and 'gathered'. 'Indifferent' comes from Latin 'indifferens', meaning 'not different or distinct', and 'gathered' is from Old English 'gadrian', meaning 'to bring together'.

'Indifferently-gathered' combines the adjective 'indifferent' with the past participle 'gathered', forming a compound adjective used in modern English.

Initially, 'indifferent' meant 'not different', but over time it evolved to mean 'having no particular interest or concern'. 'Gathered' has retained its meaning of 'collected'.