Proto-Germanic *hūwilōną

→ English howl (inherited)

→ Faroese ýla (inherited)

→ French hurler (derived)

→ Westrobothnian hyyl (derived)

→ Alemannic German hüüwle (inherited)

→ Icelandic ýla (inherited)

→ Dutch huilen (inherited)

→ Old Frisian gûle (inherited(ofs/fy))