- (archaic or poetic, as an intensifier, often ironic) indeed, truthfully, really
- A fit man, forsooth, to govern a realm!
- ~1603, William Shakespeare, Othello, Act I, scene I, line 20:
- And what was he?/ Forsooth, a great arithmetician
1960, P. G. Wodehouse, Jeeves in the Offing, chapter VIII:
- Her eyes widened. She squeaked a bit. “Don't tell me she caught you bending again?” “Bending is right. I was half-way under the dressing-table. You and your singing,” I said, and I'm not sure I didn't add the word “Forsooth!” Her eyes widened a bit further, and she squeaked another squeak.