váhou

Váhou is the instrumental singular form of váha, a Czech noun with meanings related to weight, heaviness, or a scale used to measure weight. The instrumental form váhou is used in phrases requiring the instrumental case, such as with váhou meaning "with weight" or in expressions describing weight-bearing or weight measurement.

The noun váha has two main senses. First, it denotes the physical property of an object—how heavy it is, its weight. Second, it can refer to the device used to measure weight, a scale. In everyday language váha often covers both senses, with context clarifying the meaning.

In science and technical writing, weight and mass are distinguished: hmotnost refers to mass, a quantity that does not depend on gravity; váha (weight) refers to the gravitational force acting on that mass. The distinction is reflected in usage, where váha is common in ordinary speech but hmotnost is preferred in formal physics or engineering.

Etymology: váha derives from a Proto-Slavic root connected with weighing and carrying, with cognates in other Slavic languages.