Kath / Katherine / Catherine / Kathryn / Katarina / Caitlin

Kath is a diminutive of Katherine, which itself comes from the Greek name Aikaterine. The exact etymology of Aikaterine is debated, but the most widely accepted theory links it to the Greek word 'katharos' meaning 'pure'. The name gained immense popularity through Saint Catherine of Alexandria, a 4th-century martyr who became one of the most revered saints in Christianity.

Over centuries, Katherine evolved into numerous forms across different languages, with 'Kath' emerging as a common short form in English-speaking countries. Its use as a standalone name is less common than its longer counterparts but still exists, often carrying a sense of familiarity and simplicity.