Tes"ti*fy (?), v. i. [imp. & p. p. Testified (?); p. pr. & vb. n. Testifying (?).] [OF. testifier, L. testificari; testis a witness + -ficare (in comp.) to make. See - fy, and cf. Attest, Contest, Detest, Protest, Testament.] 1. To make a solemn declaration, verbal or written, to establish some fact; to give testimony for the purpose of communicating to others a knowledge of something not known to them.

Jesus . . . needed not that any should testify of man, for he knew what was in man.

2. (Law) To make a solemn declaration under oath or affirmation, for the purpose of establishing, or making proof of, some fact to a court; to give testimony in a cause depending before a tribunal.

One witness shall not testify against any person to cause him to die.

3. To declare a charge; to protest; to give information; to bear witness; -- with against.

O Israel, . . . I will testify against thee.

I testified against them in the day wherein they sold victuals.

Tes"ti*fy, v. t. 1. To bear witness to; to support the truth of by testimony; to affirm or declare solemny.

We speak that we do know, and testify that we have seen; and ye receive not our witness.

2. (Law) To affirm or declare under oath or affirmation before a tribunal, in order to prove some fact.

Tes"ti*fy, adv. In a testy manner; fretfully; peevishly; with petulance.

Tes"ti*fy (?), v. i. [imp. & p. p. Testified (?); p. pr. & vb. n. Testifying (?).] [OF. testifier, L. testificari; testis a witness + -ficare (in comp.) to make. See - fy, and cf. Attest, Contest, Detest, Protest, Testament.] 1. To make a solemn declaration, verbal or written, to establish some fact; to give testimony for the purpose of communicating to others a knowledge of something not known to them.

Jesus . . . needed not that any should testify of man, for he knew what was in man.

2. (Law) To make a solemn declaration under oath or affirmation, for the purpose of establishing, or making proof of, some fact to a court; to give testimony in a cause depending before a tribunal.

One witness shall not testify against any person to cause him to die.

3. To declare a charge; to protest; to give information; to bear witness; -- with against.

O Israel, . . . I will testify against thee.

I testified against them in the day wherein they sold victuals.

Tes"ti*fy, v. t. 1. To bear witness to; to support the truth of by testimony; to affirm or declare solemny.

We speak that we do know, and testify that we have seen; and ye receive not our witness.

2. (Law) To affirm or declare under oath or affirmation before a tribunal, in order to prove some fact.

Tes"ti*fy, adv. In a testy manner; fretfully; peevishly; with petulance.

• to make a declaration, or give evidence, under oath
  
• to make a statement based on personal knowledge or faith