którektóregoktóremuktórektórymktórym

którektóregoktóremuktórektórymktórym is a constructed string used in linguistic discussions as a fictional example intended to illustrate the concatenation of Polish relative-pronoun forms. It has no semantic meaning and is not attested as a dictionary entry in Polish.

The form is built from a sequence of morphs derived from the stem "który/które" in Polish relative pronouns. Common forms include które (which), którego (genitive of which), któremu (dative), and którym (instrumental). The string fuses these endings into a single, continuous word, creating a long chain without spaces. In this sense, it functions as a morpheme-level demonstration rather than as a usable lexical item.

Purpose and usage: In pedagogy and sociolinguistic humor, the item is used to discuss how affixes attach to a base and how word boundaries can be ambiguous in automated text processing. It is also employed as a tongue-twister or test case for tokenizers and parsers, highlighting issues in segmentation, morphology, and parsing of highly inflected languages such as Polish.

Notes: This term is purely a linguistic construct and has no practical use in everyday Polish. It serves as an illustrative example in discussions of case forms, relative pronouns, and the boundaries between morphemes in highly inflected languages. See also Polish grammar, relative pronouns, and morphology.