'accidentally-retrieved' originates from the combination of 'accidentally' and 'retrieved'. 'Accidentally' comes from Latin 'accidentalis', meaning 'happening by chance', and 'retrieved' from Old French 'retrouver', meaning 'to find again'.

'accidentally' evolved from the Latin 'accidentalis' through Old French, while 'retrieved' transformed from Old French 'retrouver' to Middle English 'retreuen', eventually becoming 'retrieve'.

Initially, 'accidentally' meant 'by chance', and 'retrieved' meant 'to find again'. The combined term 'accidentally-retrieved' maintains these meanings, indicating something found by chance.