defendership en · NOUN
Etymology
From defender + -ship.
Meanings
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(rare, uncountable) The quality or state of being in defense of something.
I suppose that is based on the fact that if somebody put something in writing, they have some sort of a pride or a defendership of a written document.
1994, United States. Congress. Senate. Committee on the Judiciary, Hearings Before the Committee on the Judiciary, United States Senate, One Hundred Third Congress, First Session ... July 20, 21, 22, and 23, 1993: