Webster's Revised Unabridged Dictionary · 1913

Interrogate

Interrogate , transitive verb

[Latin interrogatus, past participle of interrogare to ask; inter between + rogare to ask. See Rogation.]

To question formally; to question; to examine by asking questions; as, to interrogate a witness.
Wilt thou, uncalled, interrogate, Talker! the unreplying Fate? — Emerson

Interrogate , intransitive verb

To ask questions. — Bacon

Interrogate , noun

An interrogation; a question. [Obsolete] — Bp. Hall