mis-是個常見的本族語派生詞綴。它跟mal-相似，也是表示貶義的。mis-能跟名詞、動詞相綴合，意思為bad，badly或 wrong, wrongly。它只對詞基起修飾作用，所以原單詞的詞性并不改變。下面分別舉例說明。

misfortune [ mis- = bad 壞；fortune n. 運氣→]n. bad fortune, bad luck 不幸；災(zāi)禍 / Misfortunes never come singly. 禍不單行。

misconduct [ mis- = bad 壞；conduct n. 行為→] n. bad conduct ; improper behavior 壞行為；不端行為/The misconduct of the children resulted in their being punished. 小孩的不端行為終于導(dǎo)致受罰。

misconception [ mis- = wrong 錯誤的;conception n. 想法→] n. wrong conception; mistaken idea 錯覺，誤解 / Great errors may result out of a misconception of the names of things. 對事物名稱的誤解可能釀成大錯誤。

mistake [ mis- = wrongly 錯誤地；take v. 理解→] v. take wrongly; take in a wrong sense 誤解；弄錯 / You have mistaken the meaning of the letter. 你誤解了信的意思。

mistakable a. 易誤解的，易弄錯的

mistreat [ mis- = badly 惡劣地；treat v. 對待→]v. treat badly 虐待 / The boy was punished for mistreating his dog. 那男孩因虐待他的小狗而受到懲罰

mistreatment n. 虐待

misuse [ mis- = wrongly 錯誤地；use v. 使用→]v. use for the wrong purpose; use improperly 誤用；濫用, He misused his knife at the table by lifting food with it. 他吃飯時誤用刀子去挑東西吃。