Wirujcym

Wirujcym is not a standard Polish headword. It is usually a misspelling or nonstandard inflection of the instrumental singular form wirującym, which comes from the present participle wirujący meaning “whirling” or “swirling.” The common root is the concept of a swirl or vortex (wir), and Polish forms built from it can describe motion that rotates or circles.

In standard Polish, the present participle wirujący is declined like an adjective, and its instrumental singular ends in -ącym, yielding wirującym. The form wirującym is therefore used with masculine nouns in the instrumental case to express “with a whirling motion” or “in a whirling way.” For example, one might encounter wirującym ruchem powietrza to describe air moving in a swirling motion. Note that the exact spelling wirujcym does not appear in reputable dictionaries as a normal form; it is generally treated as an orthographic error or a very rare nonstandard variant.

Etymologically, wir- derives from a root related to whirl or vortex, with typical Polish derivational suffixes that produce participles and adjectives describing motion or state. As a result, wirujący and its declined forms are used across scientific, technical, and descriptive prose to convey circular or spiraling movement.

See also: wir (vortex), wirować or wirowanie (to whirl, swirling motion), wirowy (vortical, whirling). While wirujcym may be encountered in informal writing, the standard practice is to use wirującym for the instrumental singular and to prefer the conventional verbs and participles when describing swirling motion.