Heavy Bow Forest

Old English hefig, weighty — cognate with heave. Used as a color modifier since at least the seventeenth century to indicate weight in saturation as much as value: heavy with pigment, heavy-bodied. In the engine's adjective grid, heavy sits alongside deep and plush in the dark-and-saturated quadrant. Closer to a fabric description than a pure value word.

Old Norse bógr, bow / shoulder. As a color modifier, bow implies a ship's-front-prow quality, the visual register of Royal-Navy-and-merchant-marine-bow hand-built ship's-front-prow-and-figurehead bow-and-cutwater maritime-architecture surfaces under ship's-front-bow-and-prow maritime-headway light. Sits at the modifier-and-nautical end of the grid, parallel to prow and hull in usage.

The dense canopy of a temperate or tropical woodland — oak, beech, pine, eucalyptus, mahogany — wherever leaves close above to filter the light below. Forest green refers to the average reflectance of a healthy mid-summer canopy seen from below: a saturated, slightly muted green with the matte finish of layered chlorophyll. Deeper than fern, cooler than olive, with the ecological weight of a word that has named every wooded biome on Earth.