1
Stage 1 of 4
calere
Latin · ancient
"to be warm"
to be warm, combined with non- (not)
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Stage 2 of 4
nonchaloir
Old French · medieval
"to be indifferent"
to have no warmth of feeling, to be indifferent, from non- and chaloir (to care, from calere)
3
Stage 3 of 4
nonchalant
French · 1600s
"coolly unconcerned"
present participle of nonchaloir, for someone coolly unconcerned
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Stage 4 of 4
nonchalant
English · 1730s
"calm and casually unconcerned"
adopted from French for someone calm and casually unconcerned
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