'terrain-based' originates from the word 'terrain,' which comes from the Latin word 'terra,' meaning 'earth' or 'land.' The suffix '-based' indicates reliance or dependence on something.

'Terrain' evolved from the Old French word 'terrein,' which was derived from the Latin 'terra.' The modern English word 'terrain' was formed in the 16th century.

Initially, 'terrain' referred to 'land' or 'earth,' and over time, it evolved to describe the physical features of a landscape.