Etymograph > Indo-European > Proto-Germanic > Dictionary > *hreþrja-

N (n)

diaphragm

Source: Kroonen 2013:246
Words originating from this one
OE mid-hriðere "diaphragm" (hreþrja- > hreþrj > hreþri > hreþr > hreþer) through pgmc-to-oe
(source: Kroonen 2013:246)