If you’re looking for the Dutch origins of your immigrant ancestor, keep in mind that the name originally could have been longer than the name the family used in the new country. Long names were often shortened to make them easier to pronounce in another language.
After some of my Esselinkpas cousins emigrated to Michigan in the 1800s, they went by Pas. Some members of the Roerdinkveldboom family went by Veldboom after emigration.
Another thing to keep in mind is that there might be family members who did not change their name. I’ve seen cases where some siblings kept the original name while others shortened the name. There might be records that show family members with their original name, particularly Dutch records in the new country such as Dutch church records or newspapers. Researching the whole family, and finding a range of records about your immigrant ancestor and their associates may give you clues to what the original name might have been.