D defs.my
Entry 1 sense Webster, 1913

Blacklist

/blăk'-lĭstˌ/ · Black·list · IPA /ˈblæklɪst/
01 v. t. To put in a black list as deserving of suspicion, censure, or punishment; esp. to put in a list of persons stigmatized as insolvent or untr…
  1. 1.
    To put in a black list as deserving of suspicion, censure, or punishment; esp. to put in a list of persons stigmatized as insolvent or untrustworthy, -- as tradesmen and employers do for mutual protection; as, to blacklist a workman who has been discharged. See Black list, under Black, a. See: Black
    “If you blacklist us, we will boycott you.” — John Swinton.