... the word "Tauma," or "Thomas," in Aramaic, means "a twin."  It is not a name, but a title; and, as Dr. Harris remarks, "he must have been somebody's twin-brother." (The Expository Times, v.14, 1903)

... There is, however, remarkable evidence in our list of the currency of the word Twin as a name.  Twin, in Syriac, as is well known, is Tauma, and the similarity of this to the word for Abyss or Ocean (Tehoma), led earlier compilers of Onomastica to derive the name Thomas (or twin) from Abyssus.  In the same way when pious persons attempted to get rid of the statement in the Syriac Acts of Thomas that Judas Thomas was the Twin of the Messiah, they did it by substituting the Abyss, or (as Wright translates it) the Ocean-flood of the Messiah.  Now notice that in our list of priestly names, one man has actually given his name as Oceanus Socratis.  It is safe to say that no one ever had such a name in the course of nature:  it has come to him artificially; it is translator's Latin, and bad translation at that.  In his own country, this priest would have been called Twin, or perhaps Thomas. (Picus Who is Also Zeus, Harris, 1916)