Verbs

(v)concoctmake a concoction (of) by mixing
(v)concoct, cook upprepare or cook by mixing ingredients“concoct a strange mixture”
(v)trump up, concoctinvent“trump up charges”
(v)think up, think of, dream up, hatch, concoctdevise or invent“He thought up a plan to get rich quickly”, “no-one had ever thought of such a clever piece of software”