obelize

 
Pronunciation: /ˈɒb(ə)lʌɪz/
(also obelise)

verb

[with object]
  • mark (a word or passage) with an obelus to show that it is spurious, corrupt, or doubtful: this line is commonly obelized as interrupting the sequence of thought

Origin:

mid 17th century: from Greek obelizein, in the same sense