墨すみ消けし

noun

blotting out characters with ink; inking out text

Refers to the act of covering written characters with ink to make them unreadable, often for censorship or correction.

• 機き密みつ文ぶん書しょの一いち部ぶを墨すみ消けししてから公こう開かいした。

  They released the confidential document after blotting out some parts with ink.