Those features, which function beyond the languages, accepted grammatical norms could be termed as sanctioned deviations from grammatical rules. Those accepted deviations can be considered as normal dynamics of a language. Tholkappiyam describes the grammar of Tamil as more of a descriptive nature rather than of a prescriptive one. Tholkappiyam, which explains the systemic structure of the Tamil language, describes those components, which function beyond the grammar under sanctioned deviations and general permissive rules. This type of detailing is of major importance. Thus, those general permissive rules that function beyond the accepted grammatical norms are also considered as sanctioned deviations.

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