verb (used without object), back·stopped, back·stop·ping.
verb (used with object), back·stopped, back·stop·ping.
British Dictionary definitions for backstopping
verb -stops, -stopping or -stopped (tr)
Word Origin and History for backstopping
1819, in cricket, from back (adj.) + stop. In U.S. baseball, from 1889, "fence behind the catcher;" figurative extension to "catcher on a baseball team" is from 1890. The verb is attested from 1956 in the sense of "support." Related: Backstopped; backstopping.