A shortened informal form of the name Charles, commonly used as a nickname.
A diminutive of Charles, which comes from Germanic Karl meaning 'man, freeman.' The 's' ending follows English patterns for creating informal nicknames from formal names.
Chas represents the English tendency to create punchy, one-syllable nicknames from longer formal names—similar to how Charles becomes Chuck, or Richard becomes Rich. This particular shortening maintains the original name's consonant structure while dropping syllables.
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