'unfragmented' originates from English, composed of the prefix 'un-' (from Old English 'un-' meaning 'not') combined with 'fragmented', which derives from Latin 'fragmentum' (from 'frangere' meaning 'to break') via Old French 'fragment'.

'fragment' changed from Latin 'fragmentum' to Old French 'fragment' and then to Middle English 'fragment'; the adjectival form 'fragmented' was formed with English '-ed', and later the negative prefix 'un-' was added to create 'unfragmented'.

Initially related specifically to physical pieces ('a fragment' = a broken piece), the construction 'unfragmented' originally meant 'not broken into pieces.' Over time the term has retained that sense while extending to abstract domains (e.g., data sets, narratives, markets) to mean 'not divided or dispersed.'