напон

Etymology
O-grade deverbal of. Diachronically,.

In the standard language, superseded by its 0-grade doublet.

Noun

 * 1) strain, tension

Etymology
.

Noun

 * 1)  voltage (difference in electrostatic potential)
 * 2) tension
 * 1) tension

Noun

 * 1) tension
 * 2) voltage