Ιούδας (Betrayal) refers to the act of treachery or disloyalty, most famously associated with Ιούδας Ισκαριώτης, one of the twelve apostles of Ιησούς Χριστός. He is known for betraying Jesus by revealing his identity to the authorities in exchange for thirty pieces of silver, leading to Jesus' arrest and crucifixion. This act of betrayal has become a symbol of treachery in various cultures and is often referenced in literature and art. The term "Judas" is now commonly used to describe someone who betrays a friend or a cause, reflecting the deep moral implications of disloyalty.