To take, steal, or pilfer something seen as unused, under the
thief's belief they
will make good use of it.
Thought of as a euphemism to avoid guilt by believing the victim will not miss the item (or, if discovered, appreciate the act's necessity).
"He has a whole box of Pop Tarts, there's no
harm if we necessitake a few."
"Who necessitook the flash
drive that was on the
counter? I need it back, please..."