prkopnickou
Prkopnickou is not a widely recognized geographic name in itself but rather a grammatical form used in Czech toponymy and place-name phrases. It represents the instrumental singular feminine form of a hypothetical toponym such as Prkopnická or a feminine adjective derived from a local name. In practice, prkopnickou would appear in expressions describing location, direction, or movement in relation to a place whose base name is Prkopnická, typically where the governing noun is feminine (for example a street, square, or district).
Because prkopnickou is an inflected form, its exact meaning depends on the accompanying noun and the sentence
Etymology for the base name Prkopnická is not clear without additional context, and there is no widely