To enfold is to wrap, envelop, or surround. You might enfold a baby in a blanket, or enfold a puppy in your arms.
When you enfold something, you either wrap it in a cloth or covering, or you mimic this action literally — with your arms — or figuratively. You could say, for example, that as you walk home at sunset, the night begins to enfold your neighborhood. Or you can say that you love when your grandma enfolds you in a hug. The verb enfold combines the prefix en-, "make or put in" with fold.