Proto-West Germanic *slāpan

→ English sleep (inherited)

→ Old English slæpan (inherited)

→ Cimbrian slavan (inherited)

→ Cimbrian slaafan (inherited)

→ German schlafen (inherited)

→ Middle Dutch slapen (inherited)

→ Middle English slepen (inherited)

→ Old High German slafan (inherited)

→ Mòcheno schloven (inherited)

→ Dutch slapen (inherited)

→ Old Dutch slapan (inherited)

→ Old Saxon slapan (inherited)

→ Yiddish שלאָפֿן (inherited)