Is Rex short for anything?
Not always. Rex spent long stretches as a name in its own right, so a longer form is not guaranteed to be hiding behind it. Still, old records do use it for Reginald. No other formal name claims it in the records we track. Expect it in American and British records, mostly 1900s. Let the surrounding documents settle which one your ancestor carried.
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FAQs
Is Rex a nickname?+
Not reliably. Rex was often the name itself, though it can shorten Reginald - check the records around it.
Is Rex a real name on its own?+
Yes. Rex has a solid history as an independent given name, alongside its use as a short form of Reginald.
How does this nickname lookup work?+
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