Old English swær

← German schwer (cognate)

← West Frisian swier (cognate)

← Proto-Germanic *swēraz (inherited)

← Proto-West Germanic *swār (inherited)

← Old High German suari (cognate)

← Dutch zwaar (cognate)

← Old Norse svárr (cognate)

← Old Frisian swere (cognate)

← Old Saxon swar (cognate)

← Swedish svår (cognate)

→ Old High German swar (cognate)