'unescorted' originates from the prefix 'un-' meaning 'not' and the word 'escort', which comes from the Old French 'escorte', meaning 'a body of armed men'.

'escort' changed from the Old French word 'escorte' and eventually became the modern English word 'escort'.

Initially, 'escort' meant 'a body of armed men', but over time it evolved into its current meaning of 'accompanying someone for protection or guidance'.