Emily Dickinson Lexicon

TEST'I-FY, v.i. [L. testificor; testis and facio; It. testificare; Sp. testificar.]

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. John ii.
2. In judicial proceedings, to make a solemn declaration under oath, 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 testily against any person to cause him to die. Numb. xxxv.
3. To declare a charge against one. O Israel, I will testify against thee. Ps. i.
4. To protest; to declare against. I testified against them in the day wherein they sold provisions. Neh. xiii.