From Middle English interrogacion, from Old French interrogacion, from Latin interrogātiō, from interrogō, from inter- ("between; among") + rogō ("ask; request").

• IPA: /ɪnˌteɹ.əˈɡeɪ.ʃən/

interrogation

1. The act of interrogating or questioning; examination by questions; inquiry.
   • 1936 April, T[homas] S[tearns] Eliot, “[Unfinished Poems.] Coriolan. I. Triumphal March.”, in Collected Poems 1909–1935, London: Faber & Faber […], published September 1954, →OCLC ↗, page 136 ↗:

     There is no interrogation in his eyes / Or in the hands, quiet over the horse's neck, / And the eyes watchful, waiting, perceiving, indifferent.

2. A question put; an inquiry.
3. (dated) A question mark.

• interrogate
• interrogative
• interrogator
• interrogatory
• rogation
• subrogation

• German: Befragung, (law) Vernehmung, (police) Verhör
• Italian: interrogazione
• Portuguese: interrogatório
• Russian: опро́с
• Spanish: interrogatorio

• Italian: interrogazione
• Portuguese: interrogação
• Spanish: interrogación

• German: Fragezeichen
• Portuguese: interrogação
• Spanish: signo de interrogación