“Where a husband makes a postnuptial provision in favour of his wife commensurate with his circumstances and natural duty, it is not subject to revocation by him as a donation. But if the provision be immoderate, it may be revoked quoad excessum, in so far as it is excessive.” John Trayner, Trayner’s Latin Maxims 525–26 (4th ed. 1894).
quoad excessum
quoad excessum (kwoh-ad ek-ses-[schwa]m). [Latin] Hist. With regard to the excess.
