Description:

The term 'tisko' has a sense like collection, album or file. It appears to be related to the English word 'disc', referring to computer storage media which were obsolete even at the time of Common's creation but which had a lingering influence on the language all the same. In Common, however, it refers to what we would call a folder or directory when talking about computers, and can also refer by analogy to physical collections and files.

Noun: 

In a noun context, tisko refers to a folder or directory in a computer. It can have a more abstract sense like an album produced by a musician, or a more physical sense like a file, group or collection of physical objects, by analogy to the base meaning in computers.

The derived form 'rotísko' has a sense like 'archive'. 

Verb: 

In a verb context, 'tisko' is a transitive skurun verb with a sense like 'file away', 'organise' or 'group', taking an ergative agent performing the grouping and an absolutive thing filed. In order to talk about where something is folder or grouped you would do so using the preposition 'e' when talking about filing in a computer. This Odin can also be used when taking about filing physical objects but when spacial motion is being emphasized a happat benefactive form adding the destination in the dative case might be used. 

Modifier: 

The modifier form 'tiskos' means something like 'grouped' or 'filed'. It can also have a sense like 'well-organised', 'orderly' or 'particular'.