Bumble (verb)

1. To speak or act in a confused, awkward, or inarticulate way.
2. To move or act clumsily or uncertainly.

Origin:

From the old english word "bumblen" which means to speak in a low or confused manner.

Examples:

1. He bumbled through his speech, reading from the notes.
2. She bumbled around the kitchen looking for the right ingredients.
3. He bumbled an apology for being late.
4. She bumbled her way through the explanation.
5. He bumbled and stumbled through the dance.