Old English swerian

← Proto-Germanic *swarjaną (inherited)

← Proto-West Germanic *swarjan (inherited)

← Proto-Indo-European *swer- (derived)

→ English answer (derived)

→ English swear (inherited)

→ English manswear (mention)

→ Old English geswerian (prefix)

→ Old English forswerian (prefix)

→ Old English manswerian (affix)

→ Old English andswerian (affix)

→ Middle English sweren (inherited)

→ Old High German sweren (cognate)

→ Old Norse sverja (cognate)

→ Old Frisian swera (cognate)