Sinewy Vigil Forest

Old English sinu, sinew — adjectival suffix -y. As a color modifier, sinewy implies a saturated-and-muscular-and-firm quality where the hue carries the lean-and-strong visual presence of a Roman-statue athletic figure. Sits at the bold-and-firm end of the grid, parallel to stalwart and rugged in usage.

Latin vigilia, night-watch. As a color modifier, vigil implies a night-watch-and-prayer quality, the visual register of medieval-monastic-and-Roman-Catholic night-watch-and-vigil monastic-and-religious-vigil candlelit-and-lantern-light night-vigil surfaces under medieval-monastic-vigil candlelit-and-lantern light. Sits at the modifier-and-time end of the grid, parallel to vesper and mass 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.