Middle English sweven

← Old English swefn (inherited)

← Proto-Germanic *swefnaz (inherited)

← Proto-West Germanic *swefn (inherited)

← Proto-Indo-European *swépnos (inherited)

← Old Norse söfn (cognate)

← Old Norse svefn (mention)

→ English sweven (inherited)

→ English swevening (mention)

→ Middle English drem (mention)

→ Middle English swevenen (affix)

→ Middle English swevenyng (affix)