←
Proto-Germanic *lūs (inherited)
←
Middle High German lūs (inherited)
←
Old High German lūs (inherited)
→
English louse (cognate)
→
Cimbrian laus (cognate)
→
German Wanze (compound)
→
Esperanto laŭso (derived)
→
German Low German Luus (cognate)
→
Norwegian Nynorsk lus (cognate)
→
Pennsylvania German Laus (cognate)
→
Saterland Frisian Lúus (cognate)
→
Vilamovian łaojs (cognate)