Meaning: Its source is an Aramaic expression meaning "Twin."

Languages: This girl's name is used in English.

Nicknames: Tomi, Tommie, Tommy and Tommye

Alternative Spellings: Thomasine

Variant Forms: Tamsin, Thomasena and Thomasina

Non-English Forms: Tomasa and Tommasa

Narrative: The original Greek form of this name, Didymos, began as a nickname for one of the twelve disciples of Jesus in the Christian scriptures. Other names based on the nicknames of disciples include Peter and Thaddeus.