The parent Vedda language(s) is of unknown genetic origins, while Sinhala is of the Indo-Aryan branch of Indo-European languages. Phonologically it is distinguished from Sinhala by the higher frequency of palatal sounds C and J. The effect is also heightened by the addition of inanimate suffixes. Vedda language word class is morphologically divided into nouns, verbs and variables with unique gender distinctions inanimate nouns. Per its Creole tradition, it has reduced and simplified many forms of Sinhala such as second person pronouns and denotations of negative meanings. Instead of borrowing new words from Sinhala, Vedda created combinations of words from a limited lexical stock. Vedda also maintains many archaic Sinhala terms prior to the 10th to 12th centuries, as a relict of its close contact with Sinhala. Vedda also retains a number of unique words that cannot be derived from Sinhala. Likewise, Sinhala has also borrowed from the original Vedda language, words, and grammatical structures, differentiating it from its related Indo-Aryan languages. Vedda has exerted a substratum influence in the formation of Sinhala.