Proto-Germanic *stīfaz

→ English stiff (inherited)

→ German steif (derived)

→ Finnish tiivis (derived)

→ West Frisian stiif (inherited)

→ Hunsrik steif (derived)

→ Dutch stijf (inherited)

→ Polish sztywny (derived)

→ Saterland Frisian stieuw (inherited)

→ Swedish styv (derived)