fascia

1. a detachable covering for the front part of a mobile phone.
2. a board or other flat piece of material covering the ends of rafters or other fittings.

   a further piece of chipboard acts as a fascia to disguise the ceiling fixtures

3. the dashboard of a motor vehicle.

   the interior boasts a Mercedes-like fascia

4. a thin sheath of fibrous tissue enclosing a muscle or other organ.

   the diagnosis of Dupuytren's contracture is usually very easy because the palmar fascia is obviously thickened

mid 16th century: from Latin, ‘band, door frame’, related to fasces. Compare with fess¹.