1
general::
Give up, let go of, relinquish, as in Janice hated to part with her cat, but the landlord wouldn't allow pets. [Mid-1300s]
American Heritage Idioms
2
general::
Phrase(s): part with someone or something
to give up or let go of someone or something. • She did not want to part with her friend. • I could never part with my books.
McGrawhill's American Idioms And Phrasal Verbs