sisestub

Sisestub is an Estonian verb form. It is the third-person singular present tense form of the verb sisestuma, which is related to sisestama, meaning to insert or to input. In Estonian, the suffix -ub marks the third-person singular present tense for many verbs, and sisestub is used to describe an action that is experienced by the subject or occurs as part of a process rather than actively performed by the subject. In practice, sisestub conveys a sense of something being inserted or entered through a process, often in a passive or middle-voice reading.

The form is most commonly found in technical or procedural contexts, such as descriptions of data processing, form submission, or automatic input, where the focus is on the result of the process rather than the actor performing the action. It is less frequent in everyday speech than the corresponding active form sisestab (he/she/it inserts).

Etymology traces sisestub to the root sisest-, connected with insertion or input, with the standard Estonian verb conjugation adding the -ub ending for the 3sg present. Related words include sisestus, the noun for “insertion,” and the related verb family around sisestama.

In English, sisestub is commonly rendered as “is inserted” or “is entered,” depending on the context and the implied agent. See also Estonian grammar, sisestama, and data-entry terminology.