'officially-backed' originates from the combination of 'officially' and 'backed', where 'officially' is derived from 'official', meaning 'authorized by a proper authority', and 'backed' is the past participle of 'back', meaning 'to support'.

'officially' evolved from the Latin word 'officialis', and 'backed' comes from the Old English 'bæc', meaning 'support'.

Initially, 'officially-backed' meant 'supported by an official', but over time it evolved to mean 'endorsed by any recognized authority'.