D defs.my
Entry 1 sense Webster, 1913

Arrearage

/ẽr-ēr'-ĭj/ · Ar·rear·age · IPA /ərˈiːrɪdʒ/
01 n. That which remains unpaid and overdue, after payment of a part; arrears.
  1. 1.
    That which remains unpaid and overdue, after payment of a part; arrears.
    “The old arrearages . . . being defrayed.” Howell.