stumble
intransitive verbTo miss one’s step in walking or running; trip and almost fall.
intransitive verbTo proceed unsteadily or falteringly; flounder. synonym: blunder.
intransitive verbTo act or speak falteringly or clumsily.
intransitive verbTo make a mistake or mistakes; blunder.
intransitive verbTo come upon accidentally or unexpectedly.
intransitive verbTo cause to stumble.
nounThe act of stumbling.
nounA mistake or blunder.
To slip or trip in moving on the feet; make a false step; strike the foot, or miss footing, so as to stagger or fall.