Old English sweotol

← Proto-Germanic *switulaz (inherited)

← Proto-Germanic *sw- (derived)

← Proto-Germanic *witulaz (mention)

← Proto-Germanic *witol (mention)

← Proto-Germanic *switaną (mention)

← Proto-Germanic *switan (mention)

← Proto-Indo-European *swé (derived)

← Proto-Slavic *světьlъ (borrowed)