dark-green

the compound adjective 'dark-green' is a straightforward combination of two native english color terms. 'dark' originates from old english 'deorc,' signifying a lack of light or a deep hue, while 'green' comes from old english 'grēne,' related to grass and growth. their union in the late middle english period follows a common pattern in english for specifying color shades, where an intensifier or modifier is prefixed to a base color. the logic is purely descriptive, directly combining the concept of depth or low lightness ('dark') with the specific hue ('green') to denote a particular segment of the color spectrum.

Structure: dark (color) + green (color) dark (old english, meaning 'absence of light, dark color'); green (old english, meaning 'the color green, growing plants')