'memory-based' originates from the combination of 'memory' and 'based', where 'memory' refers to the faculty by which the mind stores and remembers information, and 'based' indicates a foundation or support.

'Memory' comes from the Latin word 'memoria', and 'based' is derived from the Old French 'basse', meaning 'foundation'.

Initially, 'memory' referred to the act of remembering, and 'based' meant 'founded on'. Together, they evolved to describe systems or methods reliant on memory.