Definition: relative superiority in strength possessed by rules of grammar or by operations based on rules of grammar. This Superiority is decided generally on any one or more of the four recognised criteria such as परत्व, नित्यत्व, अन्तरङ्गत्व and अपवादत्व. The phrase अन्तरङ्गबलीयस्त्वात् very frequently occurs in the varttikas and in the Mahabhasya; cf. M.Bh. on P. III. 1.67, VI.i.17, 85 Vart. 15, VI. 4.62 and VII.1.1.