nullify

nul·li·fy
UK: /nˈʌlɪfˌa‍ɪ/   US: /ˈnəɫəˌfaɪ/
sagnorð
  • ónýta, ógilda, nema úr gildi

Samheiti: annul, avoid, invalidate, negate, neutralise, neutralize, quash, void

Andheiti: validate