Definition of misexpense in English:

misexpense

Pronunciation /ˌmɪsɪkˈspɛns/ /ˌmɪsɛkˈspɛns/

noun

rare
  • Wasteful or wrongful expenditure (of time or money).

Origin

Early 17th century; earliest use found in Joshua Sylvester (d. 1618), poet and translator. From mis- + expense.