MIS- n.
A prefix used adjectively and adverbially in the sense of amiss, wrong, ill, wrongly, unsuitably; as, misdeed, mislead, mischief, miscreant.
NITRO- n.
A combining form (used also adjectively) designating certain compounds of nitrogen or of its acids, as nitrohydrochloric, nitrocalcite; also, designating the group or radical NO2, or its compounds, as nitrobenzene. Nitro group, the radical NO2; -- called also nitroxyl.