mottle
Word family
Synonym discussion
Sense: verb/1
These four verbs all describe covering a surface with marks of different color, but differ in scale, sharpness, and cause. 'Mottle' suggests slow, uneven, often natural change — damp on a ceiling, frost on glass, age on skin — with soft-edged patches of varied sizes. 'Dapple' is the lightest and most poetic, almost always tied to light and shadow falling through leaves; a dappled horse is one with soft, light spots. 'Speckle' implies many small, often uniform dots like freckles or paint spray. 'Blotch' is the harshest — large, hard-edged, often unwanted marks like ink stains or skin rashes. Compare: sunlight 'dapples' a forest floor, age 'mottles' an old hand, freckles 'speckle' a child's nose, and red wine 'blotches' a white tablecloth.
Common collocations
Etymology
Likely a back-formation from 'motley' (late 14th-century English for cloth of mixed colors, the patchwork costume worn by court jesters), reanalysed by English speakers as if 'motley' were 'mottle-y' — full of mottles. By the 17th century 'mottle' was being used as both noun and verb for irregular patches of color on a surface.