countercheck

[ noun koun-ter-chek; verb koun-ter-chek ]
/ noun ˈkaʊn tərˌtʃɛk; verb ˌkaʊn tərˈtʃɛk /

noun

a check that opposes or restrains.
a check controlling or confirming another check.

verb (used with object)

to oppose or restrain (a tendency, force, trend, etc.) by contrary action.
to control or confirm by a second check.

Origin of countercheck

First recorded in 1550–60; counter- + check1

British Dictionary definitions for counter-checking

countercheck

noun (ˈkaʊntəˌtʃɛk)

a check or restraint, esp one that acts in opposition to another
a restraint that reinforces another restraint
a double check, as for accuracy

verb (ˌkaʊntəˈtʃɛk) (tr)

to oppose by counteraction
to control or restrain by a second check
to double-check