century CE. Nouns The declensional paradigms for some common nouns and pronouns are given below. As Malayalam is an agglutinative language, it is difficult to delineate the cases strictly and determine how many there are, although seven or eight is the generally accepted number. Alveolar plosives and nasals (although the modern Malayalam script does not distinguish the latter from the dental nasal) are underlined for clarity, following the convention of the National Library at Kolkata romanization. Personal pronouns Vocative forms are given in parentheses after the nominative, as the only pronominal vocatives that are used are the third person ones, which only occur in compounds. Other nouns The following are examples of some of the most common declension patterns. Words adopted from Sanskrit When words are adopted from Sanskrit, their endings are usually changed to conform to Malayalam norms: Nouns Masculine Sanskrit nouns with a word stem ending in a short /a/ take the ending /an/ in the nominative singular. For example, Kr̥ṣṇa → Kr̥ṣṇan. The final /n/ is dropped before masculine surnames, honorifics, or titles ending in /an/ and beginning with a consonant other than /n/ – e.g., "Krishna Menon", "Krishna Kaniyaan" etc., but "Krishnan Ezhutthachan". Surnames ending with /ar/ or /aḷ/ (where these are plural forms of "an" denoting respect) are treated similarly – "Krishna Pothuval", "Krishna Chakyar", but "Krishnan Nair", "Krishnan Nambiar", as are Sanskrit surnames such "Varma(n)", "Sharma(n)", or "Gupta(n)" (rare) – e.g., "Krishna Varma", "Krishna Sharman". If a name is a compound, only the last element undergoes this transformation – e.g., "Kr̥ṣṇa" + "dēva" = "Kr̥ṣṇadēvan", not "Kr̥ṣṇandēvan". Feminine words ending in a long /ā/ or /ī/ are changed to end in a short /a/ or /i/, for example "Sītā" → "Sīta" and "Lakṣmī" → "Lakṣmi". However, the long vowel still appears in compound words, such as "Sītādēvi" or" Lakṣmīdēvi". The long ī is generally reserved for the vocative forms of these names, although in Sanskrit the vocative actually takes a short /i/. There are also a small number of nominative /ī/ endings that have not been shortened – a prominent example being the word "strī" for "woman". Nouns that have a stem in /-an/ and which end with a long /ā/ in the masculine nominative singular have /vŭ/ added to them, for example "Brahmā" (stem "Brahman") → "Brahmāvŭ". When the same nouns are declined in the neuter and take a short /a/ ending in