The word for 'window', quri/s, is derived from the word 'door', qu/ra, which explains how it ends up being grouped with these other door-terms.
[1] Likewise, according to Adler, in the Ambrosian Lexicon (398). The word is unattested elsewhere.
[2] Perhaps from commentary on Aristophanes, who uses this diminutive term at Clouds 92, Thesmophoriazousai 26, and [see kappa 1709] Wealth 1098 (web address 1, web address 2, and web address 3).