Meaning

noun (New Testament) supposed brother of St. James; one of the Apostles who is invoked in prayer when a situation seems hopeless

noun (New Testament) the Apostle who betrayed Jesus to his enemies for 30 pieces of silver

noun someone who betrays under the guise of friendship

originFrom Middle English Iudas, from Latin Iudas, from Ancient Greek Ἰούδας (Ioúdas), from Hebrew יְהוּדָה (y'hudá). Doublet of Judah.

Etymology from Wiktionary, CC BY-SA 3.0