Where does the word window originate from?

First English attested in 1225, litterally "wind eye," from Old Norse vindauga, from vindr "wind" + auga"eye." Replaced Old English eagþyrl, litterally "eye-hole," and eagduru, litterally "eye-door." Originally an unglazed hole in a roof, most Germanic languages adopted a version of Latin fenestra to describe the glass version, and English used fenester as a parallel Word till mid-16c. Window dressing is first recorded 1790; figurative sense is from 1898. Window seat is attested from 1778. Window-shopping is recorded from 1922. Window of opportunity (1979) is from earlier figurative use in U.S. space program, e.g. launch window (1965).