Why is xmas called xmas

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Last updated: April 8, 2026

Quick Answer: Xmas is called Xmas because the 'X' represents the Greek letter Chi (Χ), which is the first letter of Χριστός (Christos), the Greek word for Christ. This abbreviation dates back to at least the 16th century, with early examples appearing in English texts around 1551. The term is not modern slang but has historical religious significance, used as a respectful shorthand in Christian contexts.

Key Facts

Overview

The term 'Xmas' has ancient origins rooted in Greek language and early Christian symbolism, not modern abbreviation as sometimes assumed. The 'X' represents the Greek letter Chi (Χ), which is the first letter of Χριστός (Christos), meaning 'Anointed One' or 'Christ' in English. This linguistic connection dates back to the earliest centuries of Christianity when Greek was the lingua franca of the Eastern Mediterranean and the language of the New Testament. The practice of using Chi as an abbreviation for Christ appears in early Christian manuscripts and inscriptions, with the Chi-Rho symbol (combining Chi and Rho, the first two letters of Christos) becoming prominent after Emperor Constantine's vision before the Battle of Milvian Bridge in 312 CE. By the Middle Ages, scribes commonly used various Christograms and abbreviations to save space in handwritten manuscripts, a practice that continued into the print era.

How It Works

The abbreviation functions through established linguistic and scribal conventions where initial letters or symbols represent entire words or names. In Greek, Χριστός (Christos) begins with Chi (Χ), making 'X' a natural abbreviation. This follows patterns seen in other religious abbreviations, such as ΙΗΣ for Jesus (from Greek ΙΗΣΟΥΣ) or INRI for the Latin 'Iesus Nazarenus Rex Iudaeorum.' The transition to English usage occurred as Christian texts were translated and copied, with scribes carrying over these abbreviations. The specific form 'Xmas' emerged in English through the combination of 'X' for Christ and 'mas' from the Old English 'mæsse' meaning 'mass' or 'festival.' The Oxford English Dictionary documents 'Xtemmas' appearing in the 1551 Anglo-Saxon Chronicle translation and 'Xmas' in Bernard Ward's 1775 'History of St. Edmund's College.' The abbreviation gained wider usage in the 19th and 20th centuries in printing and commercial contexts where space conservation was valuable.

Why It Matters

Understanding the true origin of 'Xmas' matters because it corrects common misconceptions that the term is a secular attempt to remove Christ from Christmas. In reality, 'Xmas' represents a centuries-old Christian tradition of respectful abbreviation with deep theological roots. This knowledge helps bridge cultural divides during holiday seasons when some Christians avoid 'Xmas' due to misunderstanding its origins. Historically, the usage reflects how language evolves through practical considerations like manuscript space conservation while maintaining religious meaning. Today, recognizing 'Xmas' as valid Christian terminology promotes interfaith understanding and preserves historical linguistic traditions that connect modern celebrations to ancient Christian practices.

Sources

  1. XmasCC-BY-SA-4.0
  2. Chi RhoCC-BY-SA-4.0
  3. ChristogramCC-BY-SA-4.0

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