Indifference
来自Big Physics
late Middle English (in the sense ‘being neither good nor bad’): from Latin indifferentia, from in- ‘not’ + different- ‘differing, deferring’ (from the verb differre ).
wiktionary
From Middle French indifférence, from Late Latin indifferentia
etymonline
indifference (n.)
mid-15c., "quality of being neither good nor bad, neutral quality," from Latin indifferentia "want of difference, similarity," abstract noun from indifferentem (see indifferent). From late 15c. as "lack of prejudice, impartiality;" from 1650s as "state of being apathetic." Meaning "comparative mediocrity, inexcellence"" is from 1864.
