DictionaryRoot: ad-
Latin

ad-

to, toward; addition; sometimes emphasis

Forms

  • ad-
  • ac- — Used before c in Latin.
  • af- — Used before f in Latin.
  • ag- — Used before g in Latin.
  • al- — Used before l in Latin.
  • ap- — Used before p in Latin.
  • ar- — Used before r in Latin.
  • as- — Used before s in Latin.
  • at- — Used before t in Latin.

Origin

Reconstructed Proto-Indo-European *ad, ‘to; near.’

Note

Later Latin-based spellings sometimes restored consonants that had disappeared in French.

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verb

avouch

uh-VOWCH/əˈvaʊtʃ/

Declare confidently that something is true.

The craftsperson avouches that the repaired chair is sturdy enough to use.

A craftsperson firmly vouches for a repaired chair’s soundness to a cautious customer, one hand on chest and other hand demonstrating the sturdy joined leg, direct assured eye contact.
Etymology

To “call to” meant summoning a witness or invoking an authority. That appeal to testimony underlies avouch’s sense of affirming a claim or guaranteeing its truth.

More examples

  • I can avouch the truth of her account.
  • He avouched his loyalty before the assembled council.
  • The letter avouches the writer's confidence in the findings.

Forms

avouch · avouches · avouched · avouching

Similar words

affirm
Is a more common term for stating something positively.
vouch
Usually occurs with for when guaranteeing reliability or character.