I'm looking at the name Thomas in (especially) the Gospel of John where it appears seven times as a major actor in the narrative. In the synoptic gospels and acts, his name only shows up once in a list of disciples. The name appears in John 11:16, 14:5, 20:24, 20:26, 20:27, 20:28, 21:2.
In Greek, the name appears as: Θωμᾶς In Syriac, the name appears as: ܬܐܘܡܐ (in Syriac John, this name also appears in John 14:22)
So my question is this: Is this term used in other documents where the name clearly is affiliated with the process of double and twinning? Is there an aramaic word from before the first century that might have fed into this name?
Is this only defined as "twin" because his name is associated with Δίδυμος (didymos, greek word meaning twin). Basically I'm wondering if there is an independent source for defining this name as meaning twin? Or is it only defined because of it's association with didymos? That seems like saying that Jesus's name means "Christ" because he his called Jesus Christ in the text... Or that Peter (a Greek name) means Simon (a hebrew name)... We know those are not true... But I can't find any example in the hebrew bible where this is used.
Can anyone help me understand where the definition of "Thomas" comes from in Hebrew.