The compound adjective 'yellow-spotted' is a transparent modern English formation, combining two native Germanic roots. 'Yellow' descends from the Old English 'geolu', a basic color term whose Proto-Germanic ancestor is linked to words for gold and gleam, reflecting its bright quality. 'Spot' originates from Middle English, likely from a Low German or Old Norse source meaning a blot or small piece. The suffix '-ed' is the standard adjectival ending, inherited from Old English, used to mean 'having the quality of'. The word's logic is entirely literal, directly describing something that possesses spots of the specific color yellow, a common descriptive pattern in biological and general nomenclature.

Structure: yellow (color) + spot (mark) + ed (adjective suffix) - yellow: From Old English geolu, geolwe, meaning the color yellow. A color term of Proto-Germanic origin. - spot: From Middle English spot, spotte, meaning a stain or mark. Likely of Germanic origin, related to Old Norse spotti (small piece). - ed: A suffix forming adjectives from nouns or verbs, indicating possession of a quality. From Old English -ede, -od, -ad.