improper or corrupt behavior in office, esp. in public office.
Origin: 1540–50; < MF, equiv. to malvers(er) to embezzle (< L male versārī to behave badly, equiv. to male badly (see mal-) + versārī to behave, conduct oneself, passive (in middle sense) of versāre to turn; see versatile) + -ation-ation
mal·ver·sa·tion (māl'vər-sā'shən) n. Misconduct in public office.
[French, from malverser, to misbehave, from Old French, from Latin male versārī : male, badly; see mel-3 in Indo-European roots + versārī, to behave; see wer-2 in Indo-European roots.]