French grouiller

← Old English griellan (cognate)

← German grübeln (cognate)

← Middle Dutch grollen (mention)

← English grill (link)

← English crawl (link)

← Middle French grouiller (mention)

← Old French grouiller (mention)

← Old French grouller (mention)

← Proto-Germanic *gruljaną (mention)

← Proto-Germanic *graljaną (mention)

← Proto-Germanic *grubilōną (mention)

← Middle High German grüllen (cognate)

← Proto-Indo-European *gʰer- (mention)

← Proto-Indo-European *gʰrebʰ- (mention)

← Old Norse grúfla (cognate)

← Old Dutch *grullen (mention)

→ English grill (cognate)

→ French grouillement (suffix)