undercharge

/AH0 N D ER0 CH AA1 R JH/
noun
  1. 1

    A monetary charge that is less than the correct amount.

verb
  1. 1

    To charge less than the correct amount.

    โ€œto undercharge a customerโ€

  2. 2

    To put too small a charge into.

    โ€œto undercharge a gunโ€

Antonyms

Source: https://en.wiktionary.org/wiki/undercharge