Old English grunnettan

← Old English grunnian (suffix)

← Old English ettan (suffix)

← German grunzen (cognate)

← Proto-Germanic *grunnatjaną (inherited)

← Old High German grunnezzen (cognate)

← Old Norse *grynta (cognate)

← Swedish grymta (cognate)

→ English grunt (inherited)

→ Middle English grunten (inherited)