I knew the etymology of matrix but I din't know that.

Etymology: late Middle English (in the sense "womb") from Latin, "breeding female", later "womb", from mater, matr- "mother".

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Neuromancer

The matrix has its roots in primitive arcade games. … Cyberspace. A consensual hallucination experienced daily by billions of legitimate operators, in every nation, by children being taught mathematical concepts. … A graphic representation of data abstracted from banks of every computer in the human system. Unthinkable complexity. Lines of light ranged in the nonspace of the mind, clusters and constellations of data. Like city lights, receding.

The 1999 cyberpunk science fiction film The Matrix particularly draws from Neuromancer both eponym and usage of the term "matrix". "After watching The Matrix, Gibson commented that the way that the film's creators had drawn from existing cyberpunk works was 'exactly the kind of creative cultural osmosis" he had relied upon in his own writing.'"