* Hello Beachboy, The information below comes from the Oxford Dictionary. Traumatize is a verb and traumatic is an adjective. It’s tempting to call them synonyms but by adding the suffix "ing" to the verb "traumatize", you form the present participle of the verb. If so, which one is more common in everyday English? Both are used in common everyday English but take care to use them correctly.
traumatize verb [ trans. ] subject to lasting shock as a result of an emotionally disturbing experience or physical injury : the children were traumatized by separation from their families. • Medicine cause physical injury to : the dressings can be removed without traumatizing newly formed tissue.
traumatic adjective emotionally disturbing or distressing : she was going through a traumatic divorce. • relating to or causing psychological trauma. • Medicine relating to or denoting physical injury.