New Testament name, borne by one of Christ's twelve apostles, referred to as ‘Thomas, called Didymus’ (John 11:16; 20:24). Didymos is the Greek word for ‘twin’, and the name is the Greek form of an Aramaic byname meaning ‘twin’. The given name has always been popular throughout Christendom, in part because St Thomas's doubts have made him seem a very human character.
English: from the Anglo-Norman French personal name Auvery, a Norman form of Alfred. It could also be from a variant of the Anglo-Norman French personal name Aubri (see Aubrey). At least in the case of the original Puritan settlers in New England, there has been some confusion with Averill.