curtainless

the word 'curtainless' is a modern english compound adjective formed by combining the noun 'curtain' with the suffix '-less'. the noun 'curtain' has a long history, tracing back to the late latin 'cortina', which originally referred to a cauldron or a round vessel, and later, by metaphorical extension, to a hanging screen or enclosure, possibly due to its shape. the old english suffix '-lēas', meaning "without," is a common and productive morpheme used to form adjectives indicating the absence of something. therefore, the literal construction "curtain" + "without" logically yields the modern meaning of "lacking curtains," a straightforward descriptive term for a window or opening devoid of such fabric coverings.

Structure: curtain (a piece of fabric) + less (without) curtain (from old french 'cortine', from late latin 'cortina', meaning "curtain, small enclosure") + less (from old english '-lēas', meaning "devoid of, free from")