What is "essive case"

n. (context grammar English) Noun case used to indicate a temporary state of being, such as the site of an action or the time at which it took place.

The essive case, or imilaris case ( abbreviated ) is one example of a grammatical case, an inflectional morphological process by which a form is altered or marked to indicate its grammatical function. The essive case on a noun can express it as a definite period of time during which something happens or during which a continuous action was completed. It can also denote a form as a temporary location, state of being, or character in which the subject was at a given time. The latter meaning is often referred to as the equivalent of the English phrase "as a ___".

In the Finnish language, it is marked by adding "-na/-nä" to the stem of the noun.

Examples: "child" → lapsena "as a child", "when (I) was a child". Veljeni on säveltäjänä "My brother is a composer." "composer" → "state of being a composer (the given time is the present)" Sain kirjeen viime maanantaina. "I received the letter last Monday." "Monday" → "Monday (referring to the time when the action was completed)"

Use of the essive case for specifying times, days and dates when something happens is also apparent in Finnish.

Example: ' "on 6 December".

In Finnish, the essive case is technically categorized as an old locative case, a case that, in some way, indicates spatial location. However, in the present language, the case has lost the majority of its spatial meaning. The case instead typically denotes a state that is temporary or inclined to change.

Some fixed expressions retain the essive in its ancient locative meaning, however: "at home" is kotona.

Example: "I read newspapers at home."

When marking something that cannot literally change states, the essive case can implicate the presence of alternative states, even two individual, differing "worlds". That can been seen in the following example:

Example: "I bought the pearl thinking it was genuine [but later found out that it was not]."

The example above illustrates the process by which marking of the essive case can be seen as creating two differing "worlds": one real and one illusionary. The "temporary" component of the meaning encoded by marking of the essive case on the Finnish word for "genuine" (aito) makes a distinction between the perceived state of the subject, as genuine at the time of purchase, and the actual state of subject, as not genuine as it is now perceived or at the time of the moment of speech.

If the inessive were used, kodissani, it would distinguish the activity from reading the papers, such as in the garage or in the garden (of the home).

• "I have a bathroom in my home" (not in the garage or garden).

In the Estonian language, it is marked by adding "-na" to the genitive stem. Marking of the case in Estonian denotes the capacity in which the subject acts. The essive case is used for indicating "states of being" but not of "becoming", which is instead marked by the translative case, the elative case, or the nominative case.

Examples: "child" → "of child" → "as a child", "when (I) was a child". '' "He works as an engineer."

In the Spanish language, the essive case serves as a locative case, which encodes spatial meaning. The essive case is marked by use of the adposition "en", which translates to English as "on". The Spanish essive case and its relation to two other locative cases, the allative case (encoded by Spanish adposition "a" meaning "to") and the ablative case (encoded by Spanish adposition "de" meaning "from"), is discussed by Dein Creissels in Space in Languages: Linguistic Systems and Cognitive Categories. Creissels asserts that Spanish is just one example of European languages in which these three cases are distinct, as opposed to other European languages, which exhibit some conflation between marking of the essive case and of the allative case. Below is an example of the adposition encoding the essive case in Spanish:

Example: "The children are on the beach"