käidud

Käidud is an Estonian participial adjective formed from the verb käima, meaning to go or to walk. It is the past passive participle of käima and is used to describe something that has already been visited or walked to. As a modifier, käidud agrees with the noun in case, number, and gender, and it commonly appears in travel writing and historical or geographical descriptions to indicate places, routes, or experiences that have been experienced.

The form is built on the stem käi- with the suffix -dud, following standard Estonian participle formation and phonology. In use, käidud typically functions attributively, preceding the noun or following it as part of a noun phrase.

Common usages include expressions like käidud kohad (places that have been visited) and käidud teed (paths that have been walked). In such phrases, käidud conveys experiential information, signaling that the mentioned places or routes have been previously encountered by someone.

Notes: Käidud is not a standalone noun but a participial adjective. It is declined like other adjectives to match the noun it describes. It can appear with various nouns, including places and routes, and is frequently found in descriptive text about travel, tours, or regional history.