rychlým
Rychlým is the instrumental singular form of the Czech adjective rychlý, meaning fast or rapid. It is used to describe the manner of an action or the means by which something is done, with the noun in the instrumental case. The form is not a standalone word; it is a grammatical ending that adapts the adjective to fit the gender, number, and case of the noun it modifies.
Morphology and usage: In Czech, adjectives decline to reflect gender (masculine, feminine, neuter), number (singular, plural),
Relation to other forms: Rychlým derives from rychlý, the positive degree meaning fast. The adverbial counterpart
Notes: Rychlým does not convey any independent meaning beyond its function as an instrumental-case modifier. Its