Words related to do
"put or take off" an article of clothing, especially a hat or cap, late 14c., doffen, a contraction of do off, preserving the original sense of do as "put." At the time of Johnson's Dictionary  the word was "obsolete, and rarely used except by rustics," and also in literature as a conscious archaism, but it was saved from extinction (along with don (v.)) by Sir Walter Scott. However, dout and dup did not survive. Related: Doffed; doffing.
Old English misdon, "to do evil or wrong, transgress, err" (senses now obsolete), common Germanic compound (compare Old Frisian misdua, Middle Dutch misdoen, Old High German missituon, German misstun); see mis- (1) + do (v.). Meaning "to do (work, etc.) improperly" is from 1840. Related: Misdoer; misdone; misdoing.