व्याकरण — संस्कृत STD 11 Science — Question

मत्स्य means a fish. The root word मात्स्य is मत्स्य. A thing related to मत्स्य is called मात्स्य. A bigger fish sustains her existence by eating small fish. On the basis of this sort of behaviour has come in popular.
During discussion if any such point comes up depicting a strong person oppressing a weak person or attempts to survive or to maintain his empire (supremacy) to manifest that person's inhuman behaviour very emphatically and clearly मात्स्यन्यायं expression can be used.