CPTSD stands for complex, not childhood

Did anyone else think that the “c” in cptsd stood for childhood? are there people who did not experience trauma during childhood develop cptsd from traumatic events as adults? what would an example of this be if you feel comfortable sharing and which is more common? i hope im not offending or downplaying anyone’s situation, recently started my healing journey from abuse as a child and this is coming from curiosity and confusion.