köken: From Middle High German blëch, from Old High German bleh, from Proto-West Germanic *blik, from Proto-Germanic *bliką. Compare Old Saxon blek, Dutch blik.
köken: Inherited from Old East Slavic щитъ (ščitŭ), from Proto-Slavic *ščitъ (“shield”), from Proto-Balto-Slavic *skeita, from Proto-Indo-European *skey-to-m, from *skey- (“to cut, separate”). Cognate with Serbo-Croatian štit, Old Irish scíath, Latin scūtum.
στύλος ή άλλο αντικείμενο παρόμοιου σχήματος που τοποθετείται καθέτως και στηρίζει ή στερεώνει κάτι, όπως μια σκηνή για κάμπινγκ ή τα ράφια μιας βιβλιοθήκης
window (opening for light and air) · sash (the opening part of a window) · window (period of time that acts as a limited opportunity)
çekim: çoğul ikkunat · tamlayan ikkunan
köken: A variant of earlier and now dialectal akkuna (see it for more). First attested in 1644. The initial vowel, also found in Ingrian ikkuna, Karelian ikkuna, Ludian ikkun and Veps ikun, may be due to influence from Russian ико́на (ikóna) (possibly even earlier Old East Slavic икона (ikona, “icon”)). The computing sense is a semantic loan from English window.
köken: Cognate with Lao ບານ (bān), Tày ban. TDP separates the "door classifier", "bloom", and "much" senses, though it seems somewhat feasible that they are semantically related via an original sense of "opening up and folding out".