assertion

affirmatively; in the affirmative., with emphasis, ex-cathedra, without fear of contradiction., I must say, indeed, i' faith, let me tell you, why, give me leave to say, marry, you may be sure, I'd have you to know; upon my word, upon my honor; by my troth, egad, I assure you; by jingo, by Jove, by George; troth, seriously, sadly; in sadness, in sober sadness, in truth, in earnest; of a truth, truly, perdy, in all conscience, upon oath; be assured (belief); yes (assent); I'll warrant, I'll warrant you, I'll engage, I'll answer for it, I'll be bound, I'll venture to say, I'll take my oath; in fact, forsooth, joking apart; so help me God; not to mince the matter.