Exessive case

The exessive case (abbreviated ) is a grammatical case that denotes a transition away from a state. It is a rare case found in certain dialects of Finnic languages. It completes the series of "to/in/from a state" series consisting of the translative case, the essive case and the exessive case.
Finnish.
The exessive is found only in Savo and southeastern dialects. Its ending is "-nta/ntä". For example, "tärähtäneentä terveeksi" = "from loony to healthy", or a state change from mental illness to mental health.
There are some word forms in Finnish dialects in which the exessive appears in a locative sense. These are somewhat common, though nonstandard, for example "takaanta"/"takanta" (from behind, standard Finnish "takaa"), "siintä" (from that/it or thence, standard Finnish "siitä").
Estonian.
In the general pattern of the loss of a final vowel when compared to Finnish, the Estonian exessive ending is "-nt". For example, "tagant" = from behind (something).