The name Tiras is a boy's name of Hebrew origin. Tiras and is often added to lists like Unusual Biblical Baby Names and discussed in our forums with posts like "Themed Families..".
From the experts:
We've been hearing a lot more of Silas and even of Cyrus, which means the obscure Tiras may have a shot at resurrection as a same-but-different name. And you can call him Ti. The Old Testament Tiras was a grandson of Noah.