Resounding Fast Forest

Latin resonāre, to echo back — present-participle of resound. As a color modifier, resounding implies a saturated-and-echoing-and-imposing quality where the hue reverberates visually like a cathedral-bell ring. Sits at the bold-and-resonant end of the grid, parallel to resonant and booming in usage.

Old English fæst, abstinence-from-food. As a color modifier, fast implies a Lenten-and-fasting-and-restraint quality, the visual register of Roman-Catholic-and-Eastern-Orthodox-Fast Lenten-and-Ramadan-fasting religious-fast-and-restraint austere surfaces under fasting-and-restraint austere ecclesiastical light. Sits at the modifier-and-time end of the grid, parallel to lent and vigil 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.