Vacate, v. t. [imp. & p. p. Vacated; p. pr. & vb. n. Vacating.]
Etymology: [L. vacare, vacatum, to be empty. See Vacant.]
1. To make vacant; to leave empty; to cease from filling or occupying; as, it was resolved by Parliament that James had vacated the throne of England; the tenant vacated the house.
2. To annul; to make void; to deprive of force; to make of no authority or validity; as, to vacate a commission or a charter; to vacate proceedings in a cause. That after act vacating the authority of the precedent. Eikon Basilike. The necessity of observing the Jewish Sabbath was Vacated by the apostolical institution of the Lord's Day. R. Nelson.
3. To defeat; to put an end to. [R.] He vacates my revenge. Dryden.
Shades of meaning
Fernald has no entry of its own for vacate; he lists it under abandon, cancel.
He lists it without comment; the entries above explain its neighbors.