Akademik

testifier
noun
a person who testifies or gives a deposition
Syn: ↑deponent, ↑deposer
Derivationally related forms: ↑depose (for: ↑deposer), ↑depone (for: ↑deponent), ↑testify
Hypernyms: ↑witness, ↑witnesser, ↑informant

Useful english dictionary. 2012.