The term 'A Diamond-Shaped Pattern' can be summarized by the word 'ARGYLE', which is a 6-letter word. ARGYLE is a pattern consisting of diamonds or lozenges, often in multiple colors, on a solid background. It is most commonly used in knitwear and socks, but can also be found on other items such as ties and scarves. The pattern is believed to have originated in Scotland in the 1700s, and has since become a popular fashion choice.