'accidentally-lost' originates from the combination of 'accidentally' and 'lost', where 'accidentally' comes from Latin 'accidentalis', meaning 'happening by chance', and 'lost' from Old English 'losian', meaning 'to perish'.

'accidentally-lost' combines the adverb 'accidentally' and the adjective 'lost' to describe something that is lost without intention.

Initially, 'accidentally' meant 'by chance', and 'lost' meant 'perished'. Together, they evolved to describe something unintentionally misplaced.