←
Middle Dutch grof (inherited)
←
Proto-Germanic *grubaz (inherited)
←
Proto-West Germanic *grob (inherited)
←
Old Dutch *grof (inherited)
→
English gruff (borrowed)
→
Afrikaans grof (inherited)
→
Old High German grob (cognate)
→
Luxembourgish graff (cognate)
→
Low German groff (cognate)
→
Sranan Tongo grofu (borrowed)