mulct

The word 'mulct' entered English in the late 15th century, borrowed directly from the Latin 'mulcta' (also spelled 'multa'), meaning a fine or monetary penalty. This Latin term is believed to be of pre-Latin, possibly Italic or Etruscan origin, rather than deriving from Proto-Indo-European, which explains its status as an unanalyzable simplex in English. The core semantic concept of a financial penalty has remained remarkably stable from its ancient source. Over time, its English usage expanded from strictly denoting a legal fine to also encompass the act of depriving someone of money through trickery or fraud, adding a layer of deceit to the original sense of imposed penalty.

The entire word 'mulct' functions as a simplex unit in English. It is a loanword from Latin, where 'mulcta'/'multa' meant a fine or penalty. Its functional role is as a complete lexical root.