diagnostickým

Diagnostickým is the instrumental singular form of the Czech adjective diagnostický, meaning diagnostic. It is used to describe means, methods, tools, or approaches employed to diagnose or assess something. For example, phrases such as diagnostickým postupem (by a diagnostic procedure), diagnostickým nástrojem (by a diagnostic tool), or diagnostickou metodou (by a diagnostic method) illustrate its typical usage. The form agrees with masculine or neuter nouns in instrumental case, while other gender forms exist (for example, diagnostickou for feminine nouns).

Etymology and usage context: The word derives from the Greek diagnostikos, through Latin diagnosticus, and entered Czech to express concepts related to diagnosis and assessment. In Czech, diagnostickým constructions are common in professional, technical, medical, and academic language. They convey how something is diagnosed, evaluated, or tested, rather than describing the object itself as being diagnostic.

Grammatical notes: Diagnostickým is just one inflected form; the adjective changes to match gender, number, and case. In feminine instrumental singular the form is diagnostickou, as in diagnostickou metodou (by a diagnostic method). In plural and other cases, related forms such as diagnostickými or diagnostickými metodami appear. Overall, diagnostickým reflects a formal, technical register appropriate to discussions of diagnosis, testing, and evaluation.