fenster

From German Fenster (“window”).

fenster (plural fensters)

1. (geology) A geologic structure formed by erosion or normal faulting on a thrust system; a tectonic window.
   • 1983, J. F. Evernden, ‎R. E. Criss, ‎William Jasper Sando,

     Examination of strain data and cross sections suggests that the fensters expose rootless tectonic slices […]

• fernets

• fęinstęr, fönster

From Middle Low German venster, vinster, from Latin fenestra (“window”).

• Rhymes: -ɛr

fenster n (definite fensträ)

1. window

   Hä dörrä ti fensträ, då thorn gikk

   The window shook when there was thunder.