fenestration (n.)youdaoicibaDictYouDict[fenestration 词源字典]
1870 in the anatomical sense, noun of action from Latin fenestrare, from fenestra "window, opening for light," a word perhaps from Etruscan. Meaning "arrangement of windows" as a design element in architecture is from 1846. Related: Fenestrated.[fenestration etymology, fenestration origin, 英语词源]