understroke/ˈʌndə(ɹ)stɹəʊk/EtymologyFrom under- + stroke.adjBeing or relating to an upstrike typewriter.“Later in his life Tolstoy was given a Remington understroke typewriter but his spirituality did not incline him to use labor-saving machines.”nounA lower or underlining stroke in writing.verbTo underline or underscore.“You have understroked that offensive word, to show it should be printed in italic.”