misspeak

[ mis-speek ]
/ mɪsˈspik /

verb (used with or without object), mis·spoke, mis·spok·en, mis·speak·ing.

to speak, utter, or pronounce incorrectly.
to speak inaccurately, inappropriately, or too hastily.

Origin of misspeak

1150–1200; Middle English misspeken; see mis-1, speak; compare Old English missprecan to murmur