similar-looking

The compound adjective "similar-looking" is a modern English formation that transparently combines two established elements. The first part, "similar," originates from the Latin similis, meaning "like" or "resembling," which itself may derive from the Proto-Indo-European root sem-, suggesting a sense of "one" or "together." The second part, "looking," stems from the Old English verb lōcian, meaning "to see" or "to have a certain appearance." The compound's logic is direct and descriptive: it denotes an object or person that, when seen or observed (looking), possesses qualities that are alike (similar) to another. This straightforward morphological process of joining an adjective with a present participle is a common and productive method in English for creating descriptive terms related to visual perception.

Structure: similar (like) + looking (appearing) - similar: From Latin similis (like, resembling). Functions as the core adjective meaning 'alike'. - looking: From Old English lōcian (to see, gaze). Functions as a present participle, creating a compound adjective meaning 'having the appearance of'.