Low German slapen

← German schlafen (cognate)

← English sleep (cognate)

← English sleep (link)

← West Frisian sliepe (cognate)

← Middle Low German slāpen (inherited)

← Dutch slapen (cognate)

← Old Saxon slapan (inherited)

→ Old English slæpan (cognate)

→ German schlafen (cognate)

→ Luxembourgish schlofen (cognate)