Difference between Apopemptic and Leaving

Apopemptic

Part of speech: adjective

Definition: Pertaining to departing; a farewell or valedictory.

Part of speech: noun

Definition: (Obsolete) A farewell or parting address.

Leaving

Part of speech: verb

Definition: To have a consequence or remnant.

Example sentence: My paramount object in this struggle is to save the Union, and is not either to save or to destroy slavery. If I could save the Union without freeing any slave, I would do it; and if I could save it by freeing some and leaving others alone, I would also do that.