1324. Didumos -- Didymus.
... Thomas. Word Origin "twin," Didymus, Gr. surname of the apostle Thomas (cf.
Thomas) NASB Word Usage Didymus (3). Didymus. Prolongation ...
//strongsnumbers.com/greek2/1324.htm - 6kJohn 11:16
Then said Thomas, which is called Didymus, to his fellow disciples, Let us also go, that we may die with him.
Nave's Topical Index

The Call of Matthew - the Saviour's Welcome to Sinners - Rabbinic ...
... Thomas, who is called Didymus (which means twin'), is closely ... [2493] Thus his real
name would have been Judas Lebbæus, and his surname Thaddæus. ...
/.../edersheim/the life and times of jesus the messiah/chapter xvii the call of.htm

Didymus

Didymus (Twin): Surname of Thomas

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