ondergraven angolul

sap [sapped, sapping, saps]▼(undermine)
verb
[UK: sæp] [US: ˈsæp]

subvert [subverted, subverting, subverts]▼(to upturn convention by undermining it)
verb
[UK: sʌb.ˈvɜːt] [US: sʌb.ˈvɝːt]

undermine [undermined, undermining, undermines]▼(hinder, sabotage)
verb
[UK: ˌʌn.də.ˈmaɪn] [US: ˈʌn.dər.ˌmaɪn]