2010, Aina J. Gulya, Lloyd B. Minor, Michael E. Glasscock,Glasscock-Shambaugh Surgery of the Ear, page536:
The platinum shaft connecting the ribbon to the piston base is a rounded wire and can be easily angulated after placement of the prosthesis for optimal incus tofenestra reach.
Apparently fromEtruscan*𐌚𐌍𐌄𐌔𐌕𐌓𐌀(*fnestra); andfēstra from Etruscan*𐌚𐌄𐌍𐌔𐌕𐌓𐌀(*fenstra). Compare the Etruscan personal name[script needed](fnes-ci) and the Latin placenameFensernia, but nothing is known about the meaning of the Etruscan base.[1]
“fenestra”, inCharlton T. Lewis (1891),An Elementary Latin Dictionary, New York: Harper & Brothers
"fenestra", in Charles du Fresne du Cange,Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)