The term is a modern English compound, combining the name of a letter with an adjective. The use of letters to describe shapes is a practical convention in geometry, design, and description, with 'X' being one of the most recognizable due to its crossing lines. The morpheme 'shaped' derives from the Old English concept of 'creation' or 'form', which evolved into a suffix denoting possession of a specified form. Thus, 'x-shaped' literally means 'having the form of the letter X', a concise descriptor for any object or pattern featuring two intersecting lines, typically at their centers.

Structure: x (letter) + shaped (form) 'x' is the English name for the 24th letter of the Latin alphabet, used here as a combining form. 'shaped' is from Old English 'gesceap' (creation, form) and the past participle suffix '-ed', functioning as an adjective-forming element meaning 'having the form of'.