megalith

the word 'megalith' is a modern scientific formation, coined in the 19th century by combining two greek roots. the first element, 'mega-', derives from the ancient greek adjective 'megas', meaning 'great' or 'large', which itself has a deep proto-indo-european ancestry in the root megʷ- meaning 'great'. the second element, '-lith', comes from the greek noun 'lithos' for 'stone', a word of uncertain but possibly pre-greek origin. when combined, these elements create a term with a perfectly transparent literal meaning: 'large stone'. this logical construction was specifically adopted by archaeologists to classify and describe the massive, often unhewn stones used in prehistoric structures like stonehenge or dolmens, thus linking the ancient descriptive roots directly to their modern technical application.

Structure: mega (large) + lith (stone) mega- (from greek 'megas', meaning 'great, large', a combining form denoting size or greatness); -lith (from greek 'lithos', meaning 'stone', a combining form denoting stone or rock).