The Spanish word 'cama' (meaning 'bed') has an interesting journey from ancient Greek through Latin. It originated from the Greek word 'khamai' (χαμαί), which meant 'on the ground.' This Greek word evolved into the Latin 'chamae' with the same meaning, and then into Latin 'cama' which specifically referred to a 'bed on the ground.' Finally, it developed into the modern Spanish 'cama', generalizing to mean any kind of bed, whether on the ground or raised.

While 'cama' itself is a fairly basic and common Spanish word, there are some related terms like 'camarote' (ship's cabin/berth) and 'camareta' (small bedroom), which are diminutive or specialized forms derived from 'cama'.

While there aren't many common English words directly related to 'cama', we do see the Greek root 'khamai-' (meaning 'on the ground') in some specialized English botanical terms like 'chamaephyte' (a plant that grows close to the ground) and 'chamomile' (literally 'ground apple', referring to the plant's low-growing nature and apple-like scent).