work up

to produce or bring about especially by long or repeated effort <spent years working up a period novel that was historically accurate in every detail> Synonyms carve (out), develop, forge, grind (out), thrash (out), work out, hammer outRelated Words churn out, crank out, turn out; cobble (together or up), throw up; compose, construct, craft, create, engineer, fabricate, fashion, form, frame, generate, manufacture, mint, model, shape, tailor; conceive, concoct, contrive, cook (up), devise, hatch, invent, originate; accomplish, achieve, bring off, carry out, effectNear Antonyms demolish, destroy, dismantle, raze, tear down; ruin, undo, unmake, wreck