Withhold is one word that does.
In the English language hundreds of words have double consonants in the middle or a single consonant in the middle or both. Here are a few examples: withhold and beryllosis You will find a lot of medical words have this consonant pattern.
Words that double the consonant before adding "ed" typically include those that have a single vowel followed by a single consonant at the end, and where the final syllable is stressed. Examples include "stop" becoming "stopped" and "plan" becoming "planned." This rule helps maintain the pronunciation and integrity of the original word.
There are four set of criteria for doubling the final consonant of a word when adding a suffix. If said word ends in a single consonant, has a single preceding that vowel, has an accent on the last syllable, and the suffix being added begins with a vowel, the final consonant in the word is doubled.
redder forgoten
Words with consonant blends are easier to spell when they only have a single consonant. In general, they can only have to three consonants.
z is not a vowel
Almost any word you can think of that has a double consonant preceeded by a vowel will have a short vowel sound, just as almost any word with a single consonant after the vowel will make the vowel a long sound. A few words that have a short vowel sound followed by a double consonant are: batter, better, bitter, butter, hemming, teller, messier and letter.
When adding a suffix to a word, the final consonant is doubled in cases where the word ends in a single consonant followed by a single vowel. Examples include "stop" becoming "stopping" and "run" becoming "running."
zoolonigeer
Hobby, hubby, hugged, haggle, hottest and hatter are words. They contain a double consonant.
Examples of words with double consonant endings include: "bitter," "happy," "better," "running," "rebel," and "planning."
beginning, petting, running, stop shop pop