köken: From Middle High German bunt, probably from Latin punctus, whence also English point; this would make it a doublet of Punkt. Dutch bont seems to have somewhat earlier attestations in the relevant sense, but the phonetic form (b- for p- and Dutch -o- for -u-) could hint at Middle High German origin. It is therefore unsettled which of the two borrowed from which.
köken: From Middle Dutch bont, probably from Latin punctus (“striped”) (thus a doublet of punt); compare German bunt. The noun is derived from the adjective: originally the noun referred to furs of variegated color.