'masonry-built' is a Modern English compound formed from 'masonry' and 'built'. 'masonry' originates from Old French, specifically the word 'maçonnerie', where 'maçon' meant 'stoneworker'; 'built' is the past participle of 'build', which comes from Old English 'byldan' (or 'buildan') meaning 'to construct'.

'masonry' changed from Old French 'maçonnerie' (and Middle English forms such as 'masounrie' or 'masenry') and eventually became the modern English 'masonry'. 'build' derived from Old English 'byldan/buildan' and evolved into the modern verb 'build', with 'built' as its past participle; the compound adjective 'masonry-built' arose in Modern English by combining these elements.

Initially, 'masonry' referred to the work or trade of masons and 'built' simply indicated having been constructed; over time the compound 'masonry-built' came to specifically mean 'constructed of masonry materials' in modern usage.