In heraldry, a triangular shape used as a bearing or charge, typically occupying one corner of a shield.
From Old French 'giron' (a triangular piece of cloth), possibly from 'girer' (to turn or revolve). The heraldic usage became standardized in medieval France and was adopted into English heraldic terminology.
Giron is one of the beautiful geometric shapes in heraldry's visual language—if you look at medieval shields, you'll see the giron (triangle) appearing in different colors and positions to represent family lineages and territories. It's linguistic precision applied to visual art, where each shape and color combination told a story about who you were.
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