The word "wrongdoing" is a transparent compound formed from native English elements. The first element, "wrong," originates from Old Norse rangr, meaning "crooked, unjust," which entered Old English and evolved to denote anything contrary to moral or legal standards. The second element, "doing," is the verbal noun from the ubiquitous Germanic verb "do," referring to an action or deed. The compound's logic is perfectly literal: a "wrong-doing" is literally an "unjust act." This straightforward construction reflects a common pattern in English for forming abstract nouns for misconduct by combining a descriptive adjective with a general action noun, creating a term that is immediately comprehensible.

Structure: wrong (incorrect, unjust) + doing (act, action) - wrong: From Old English wrang (of Scandinavian origin), meaning "wrong, unjust, perverse". Functions as an adjective/adverb root describing incorrectness or injustice. - doing: From Old English dōende, present participle of dōn ("to do"). Functions as a noun-forming element indicating an act or action.