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Etymology tree Proto-Indo-European *dwóh₁ ▲ Proto-Indo-European *trísinflu. Proto-Indo-European *d(w)is- Proto-Italic *dis- Latin dis- Proto-Indo-European *streyg- Proto-Indo-European *-né- Proto-Indo-European *-ti Proto-Indo-European *strinégti Proto-Italic *stringō Proto-Indo-European *strengʰ- Proto-Indo-European *-eti Proto-Indo-European *stréngʰeti Proto-Italic *strengō Latin stringō Latin distringōder. Old French destrecierbor. Middle English destresse English stress From a shortening of Middle English destresse, borrowed from Old French destrecier, from Latin distringō (“to stretch out”). This form probably coalesced with Middle English stresse, from Old French estrece (“narrowness”), from Vulgar Latin *strictia, from Latin strictus (“narrow”). Displaced native Old English swēġ (“accent, stress”), though strictly in the grammatical sense. In the sense of "mental strain" or “disruption”, used occasionally in the 1920s and 1930s by psychologists, including Walter Cannon (1934); in “biological threat”, used by endocrinologist Hans Selye, by metaphor with stress in physics (force on an object) in the 1930s, and popularized by same in the 1950s.