testi-, test-

(Latin: a witness, one who stands by)

protestation (s) (noun), protestations (pl)
1. A strong or firm declaration that something is true or false.
2. The act of complaining by expressing strong disapproval of something: A protestation is a statement which expresses a significant disagreement about the validity of statements or actions that other other people express.
protester (s) (noun), protesters (pl)
Someone who uses publicity and forcefulness to make his or her opinions heard in an attempt to influence public opinions or government policies: Such protesters may undertake direct actions in order to enact their desired modifications.
protestingly (adverb), more protestingly, most protestingly
A reference to an expression or declaration of objection, disapproval, or dissent: A protestingly governmental policy or practice that is applied often to what President Trump is doing; especially, with the government shut down.
testament (s) (noun), testaments (pl)
1. A formal statement or speech outlining religious beliefs.
2. In law, an old word for a legal will, used most often in the phrase "last will and testament".
testamentary (adjective), more testamentary, most testamentary
Relating or bequeathed to a legal will or testament: It is a testamentary paper, instrument, document, gift, appointment. etc. when it is written or made so as not to take effect until after the death of the person making it, and it can be under his or her control or modification during his or her life.
testamur
English university certificate; from Latin testamur, "we attest, testify"; from testari; so called from the word testamur used in the text of the certificate.
testate
Someone who has made a legally valid will.
testator
Someone, especially a man, who has made a legally valid will.
testatrix
A woman who has made a legally valid will.
teste
To bear witness formally.
testes
Witnesses.
Testes ponderantur, non numerantur
"Witnesses are weighed, not numbered."

That is, in case of a conflict of evidence, the truth is to be sought by weighing the credibility of the respective witnesses, not by the mere numerical preponderance on one side or the other.

Testes ponderantur, non numerantur. (Latin proverb)
Translation: "Witnesses are weighed, not numbered."

That is, in case of a conflict of evidence, the truth is to be sought by weighing the credibility of the respective witnesses, not by the mere numerical preponderance on one side or the other.

Testibus deponentibus in pari numero, dignioribus est credendum. (Latin proverb)
Translation: "Where the witnesses who testify are in equal number (on both sides), the more worthy are they to be believed."
testiferous
Opposite of hysterical.