How to spell TRANQUILESING correctly?

If you meant "tranquilizing" and misspelled it as "tranquilesing", here are a few correct suggestions: tranquilizing, tranquilising, tranquilizing, tranquillizing. These alternatives accurately capture the meaning of inducing a state of calmness or tranquility, and are commonly used to describe substances or actions that have a soothing effect on the mind and body.