tiznar betyder på engelska

blacken [blackened, blackening, blackens]▼(defame, sully)
verb
[UK: ˈblækən] [US: ˈblækən]

tarnish [tarnished, tarnishing, tarnishes]▼(to compromise, damage, soil, or sully)
verb
[UK: ˈtɑː.nɪʃ] [US: ˈtɑːr.ˌnɪʃ]