Rusça "окно" kelimesi Türkçe'de pencere anlamına gelir.
Etimoloji
Inherited from Proto-Slavic *okъno. Related to Russian о́ко (óko, “eye”). For semantic parallels, compare Old English ēagþȳrel (“window”, literally “eye-hole”) and Old Norse vindauga (“window”, literally “wind-eye”) (whence English window).