vasistas

Etymology
Attested since 1760, and early on spelled (in occurrences from 1770 and 1776), from.

Noun

 * 1) transom window window above a door or another window
 * 2) fortochka small ventilation window
 * 1) fortochka small ventilation window

Etymology
From, from.

Noun

 * 1)  window above a door or another window
 * 2) bottom hung window, trap window
 * 3)  small ventilation window