Origins
The word 'diverse' entered English in the thirteenth century from Old French 'divers,' itself descended from Latin 'diversus,' the past participle of 'divertere' meaning 'to turn aside' or 'to go in different directions.' Its etymology reveals a remarkably physical metaphor at the heart of an abstract concept: diversity is, at root, a turning apart.
The Latin verb 'divertere' is composed of two elements. The prefix 'dis-' (or 'di-' before certain consonants) means 'apart' or 'asunder,' and 'vertere' means 'to turn.' The underlying image is of paths or directions that fork away from each other — things that are 'diverse' have been turned in different directions from a common point. Latin 'diversus' was used both literally (of roads branching apart) and figuratively (of opinions, characters, or types that differed from one another).
The root 'vertere' comes from the Proto-Indo-European root *wert-, meaning 'to turn,' one of the most productive roots in the Latin vocabulary and, through Latin, in English. From *wert- descend 'verse' (a 'turning' of the plough at the end of a furrow, hence a line of writing), 'version' (a 'turning' of a text into another language), 'convert' (to turn together, to change), 'reverse' (to turn back), 'universe' (turned into one, the whole), 'vertebra' (a joint that turns), and 'vertigo' (a sensation of turning). In the Germanic branch, the same PIE root produced Old English 'weorþan' (to become — literally 'to turn into'), which survives in German 'werden' (to become) and is fossilized in English '-ward' (as in 'toward,' 'homeward' — indicating a direction of turning).
Middle English
In Old French, 'divers' carried meanings ranging from 'different' to 'several' to 'various,' and all of these shades entered Middle English. Chaucer used 'divers' frequently to mean 'several' or 'various,' as in 'divers folk' (various people). This quantitative sense — meaning 'several, more than one' — remained the primary English meaning for centuries. A fifteenth-century text might describe 'divers reasons' where a modern writer would say 'several reasons.'
The qualitative sense — emphasizing difference, variety, and heterogeneity rather than mere plurality — gradually gained prominence. By the seventeenth century, 'diverse' (with the stress shifting toward the second syllable) was increasingly distinguished from 'divers' (with stress on the first): 'divers' meant 'several' while 'diverse' meant 'markedly different.' This distinction, though never absolute, reflected a genuine semantic fork.
The modern explosion of 'diverse' and 'diversity' as cultural keywords belongs to the late twentieth century. In the 1978 Supreme Court case Regents of the University of California v. Bakke, Justice Lewis Powell's opinion held that 'diversity' in a student body was a compelling interest that could justify race-conscious admissions. This legal usage catalyzed the word's transformation from a general descriptor to a term with specific political, institutional, and moral weight. By the 1990s, 'diversity' had become one of the defining terms of American public discourse.
Latin Roots
The related word 'divorce' illustrates the same root from a darker angle. Latin 'divortium' (a separation, a point where roads diverge) comes from the same 'divertere.' A divorce is literally a 'turning apart' — the same metaphor as diversity, but applied to the dissolution of a bond rather than the celebration of variety.
Linguistically, 'diverse' shows how a spatial metaphor — turning in different directions — can be abstracted into a concept of categorical difference, and how that concept can then be further specialized into a term of social and political significance. The word's journey from Latin road-forks to modern inclusion policy is itself a demonstration of semantic diversity: a single root turning in many directions over two millennia.