'accidentally-founded' originates from the combination of 'accidentally' and 'founded', where 'accidentally' comes from Latin 'accidentalis', meaning 'happening by chance', and 'founded' from Old English 'fundian', meaning 'to establish'.

'accidentally-founded' evolved from the combination of 'accidentally' and 'founded', reflecting the idea of something being established without prior intention.

Initially, it meant 'established by chance', and this meaning has largely remained the same in modern usage.