Analysis of information sources in references of the Wikipedia article "Exessive case" in English language version.
Sometimes a case, exessive, with an ending ntA (combined from the ending nA of essive and tA of partitive) is suggested, meaning "from the role of", thus making the system of locational cases more orthogonal. It is used in a few dialects, though often in a few words only, e.g. using luonta instead of ...
A rare case form attested in some dialects of Finnish is the exessive, -nta/-ntä; it has developed on the basis of the historical separative case -ta/-tä (which is also the origin of the contemporary Finnish partitive case, which has changed from its historical local meaning into a grammatical case) and has been used in roughly the same meaning: luonta "from the vicinity of", takanta "from behind". The form is relatively young, which can be seen from the fact that it does not take part in Finnish consonantal gradation of stops (takanta, never *taanta – although taakse "(to) behind" where the gradation does take place). In contrast to the Estonian terminative, neither the exessive nor the above-mentioned prolative have become productive case endings in any Finnic language.
