'unexpectedly-dismissed' originates from the combination of 'unexpectedly' and 'dismissed'. 'Unexpectedly' comes from 'unexpected', which is derived from Latin 'ex-' meaning 'out of' and 'pectare' meaning 'to look'. 'Dismissed' comes from Latin 'dimittere', where 'dis-' meant 'apart' and 'mittere' meant 'to send'.

'Unexpectedly' evolved from the Old French 'despecier', and 'dismissed' from the Old French 'desmettre', eventually forming the modern English term 'unexpectedly-dismissed'.

Initially, 'dismissed' meant 'to send away', but over time it evolved into its current meaning of 'to terminate employment'.