dangerous-looking

The compound adjective 'dangerous-looking' is a modern English formation that transparently combines two established words to create a descriptive term. The first element, 'dangerous', carries its full modern meaning of "involving risk or peril", a sense that evolved from the Old French concept of being under someone else's power or dominion. The second element, 'looking', utilizes the present participle form of the verb 'to look', which originates from an Old English verb meaning to direct one's gaze. When combined, the logic is straightforward: the appearance ('looking') of a person, animal, or object is described as being suggestive of danger, creating an efficient and vivid descriptor based entirely on the established meanings of its components.

Structure: dangerous (full word) + looking (full word) dangerous: From Middle English 'daungerous', from Old French 'dangeros', meaning "full of danger". The root 'danger' ultimately derives from Latin 'dominarium', meaning "power, lordship". looking: From Old English 'lōcian', meaning "to see, gaze, appear". The '-ing' suffix forms the present participle/adjective.