English gruff

← German grob (cognate)

← Middle Dutch grof (derived)

← West Frisian grof (cognate)

← Proto-Germanic *gahrubaz (derived)

← Proto-Germanic *hrubaz (mention)

← Proto-Germanic *hreubaz (cognate)

← Proto-Germanic *grubaz (derived)

← Proto-West Germanic *gahrob (derived)

← Proto-West Germanic *grob (derived)

← Low German groff (cognate)

← Dutch grof (borrowed)

← Old Dutch *grof (derived)

← Saterland Frisian groaf (cognate)

← Swedish grov (cognate)

→ English gruffly (suffix)

→ English greaves (mention)

→ English gruffness (suffix)

→ English gruffish (suffix)

→ German grob (cognate)