Frail: Frail and fragile are the same… | etymologist.ai
frail
/freɪl/·adjective·circa 1300 CE, Middle English 'fraile', in religious texts denoting moral and physical weakness·Established
Origin
Frail and fragile are doublets — the same Latin word fragilis (from frangere, 'to break', from PIE *bhreg-) entering English twice, once eroded through Old French as frail and once borrowed intact from Latin as fragile, then pushed apart by the system: frail for human weakness, fragile for material breakability.
Definition
Physically weak and delicate; easily damaged or broken.
The Full Story
Old French / Latin13th century English, classical Latinwell-attested
English 'frail' entered the language in the mid-13th century, borrowed from Old French 'fraile' (also 'frele'), which itself descended from Latin 'fragilis', meaning 'easily broken, brittle, frail'. Latin 'fragilis' was derived from 'frangere' (to break), a verb well attested in classical Latin prose and poetry — Cicero, Virgil, and Ovid all used 'fragilis' and related forms. ThePIEroot
Did you know?
Frail and fragile are the same word — Latin fragilis entered English twice, once worn down through Old French as frail and once borroweddirectly from Latin as fragile. But the root behind them, PIE *bhreg- (to break), reaches even further: it gives English the native Germanic verb break, and through Latin frangere it produces fraction, fracture, fragment, refract, infringe — and possibly suffrage, which may originally have meant the casting of a broken shard as a ballot in Roman voting. Oneroot
via different routes. 'Frail' came through Old French phonological reduction (fragilis → fraile/frele), while 'fragile' was borrowed directly from Latin in the 16th century, retaining more of the original form and meaning. This split preserved a semantic distinction: 'frail' became associated with human weakness, both physical and moral, while 'fragile' retained the concrete sense of material brittleness. The PIE root *bhreg- is extraordinarily productive across Indo-European. In Germanic it gives Old English 'brecan' and Modern English 'break' and 'breach'. In Latin it yields 'fraction' (fractio, a breaking), 'fracture', 'fragment' (fragmentum, a piece broken off), 'infringement' (infringere, to break into), 'refraction', 'suffrage' (Latin suffragium, possibly from sub- + frangere), and 'saxifrage' (the rock-breaking plant, from saxum + frangere). Key roots: *bhreg- (Proto-Indo-European: "to break"), frangere (Latin: "to break, shatter"), fragilis (Latin: "easily broken, brittle, frail").