underget

From under- +‎ get.

underget (third-person singular simple present undergets, present participle undergetting, simple past undergot, past participle undergot or undergotten)

1. (rare, transitive, intransitive) To get less than expected or due.
   • 1885, Edmund B. Ivatts, Railway management at stations:

     Some companies hold their clerks responsible to account for the actual amount of the fares on tickets sold, and ignore the question of overgot and undergot money.

   • 1920, Financial World, volume 33, page 8:

     There Is a Limit to Over-Paying and Undergetting

   • 1923, Charles Vickers, Metals and their alloys:

     Those that underpay, underget.

   Antonym: overget