- To declare the provable truth or validity of; affirm: She avouched that she herself was innocent.
- To corroborate or confirm; vouch for: Has this report been avouched?
- To accept responsibility for (an action, for example); acknowledge.
- To avow; confess.
[Middle English avouchen, to cite as a warrant, from Old French avochier, from Latin advocāre, to summon. See advocate.]
avouchment a·vouch'ment n.



