bederven

Etymology
From ; see there for further etymology. Unrelated to, but related to.

Verb

 * 1)  to spoil, to go off, to go bad
 * 2)  to make worse
 * 3)  to indulge, spoil

Etymology
The prefix is and the second element is from.

However, whether the word was formed in Old or Middle Dutch or was inherited from Proto-Germanic is unclear: while on the one hand, there are no affixless reflexes of *derbaną attested in Old or Middle Dutch, there are also no cognates of this specific prefixed formation in other Germanic languages. Perhaps an Early Medieval or Late Antique formation, from when a hypothetical or early  reflex of *derbaną had not yet become obsolete.

Initially this verb was strong; the meaning was 'to collapse, to destroy'. The causative, intransitive verb derived from was weak and had the meaning 'to perish, to die'. The combination of meaning 'to work' and 'to perish' as in 🇨🇬 is remarkable.

Verb

 * 1) to ruin, to kill
 * 2) to damage, to destroy
 * 3) to perish
 * 4) to die