underkeep

/AH1 N D ER0 K IY0 P/
verb
  1. 1

    (transitive) To keep under or in subjection; subdue; suppress.

  2. 2

    (transitive) To keep or maintain inadequately or below standard.

noun
  1. 1

    An underground reserve.

  2. 2

    A keep or storage space located beneath the foundation of a structure; cellar.

  3. 3

    Any storage space or reservoir placed below another object.

  4. 4

    An underkeeper, guardian, or custodian.