undulatory

accusatory, admonitory, adulatory, a fortiori, aleatory, ambulatory, amendatory, applicatory, approbatory, celebratory, circulatory, combinatory, commendatory, compensatory, conciliatory, condemnatory, confirmatory, confiscatory, conservatory, consolatory, contributory, copulatory, cosignatory, declamatory, declaratory, dedicatory, defamatory, denigratory, depilatory, depository, derogatory, designatory, dispensatory, divinatory, escalatory, excitatory, exclamatory, exculpatory, excusatory, exhibitory, exhortatory, expiatory, expiratory, explanatory, explicatory, exploratory, expository, expurgatory, incubatory, indicatory, inflammatory, informatory, innovatory, inspiratory, inundatory, invitatory, judicatory, masticatory, masturbatory, memento mori, millefiori, obfuscatory, obligatory, observatory, performatory, persecutory, predicatory, premonitory, prohibitory, reformatory, regulatory, repository, retributory, revelatory, respiratory, salutatory, stipulatory, supplicatory, transmigratory