←
Middle Dutch luus (inherited)
←
English louse (cognate)
←
West Frisian lûs (cognate)
←
Proto-Germanic *lūs (inherited)
←
Low German Luus (cognate)
←
Old Dutch *lūs (inherited)
→
English louse (cognate)
→
Afrikaans luis (inherited)
→
Cimbrian laus (cognate)
→
German Low German Luus (cognate)
→
Norwegian Nynorsk lus (cognate)
→
Pennsylvania German Laus (cognate)