Definition of "appertinent"

To furnish him with all appertinents / Belonging to his honour;

c. 1599, William Shakespeare, Henry V, act 2, scene 2, lines 87–88

Nay, those temptations which are foreknown and foreseen as most appertinent to our particular calling, are commonly least dangerous, or even cease to be temptations to a mind forearmed by principles and aspirations like yours.

September 30, 1819, Samuel Taylor Coleridge, letter to T. Alsopp