Origins
The English adjective 'austere' is a word that began on the tongue — literally. Its Greek ancestor described the puckering, drying sensation of unripe fruit or strongly tannic wine, and its migration from the vocabulary of taste to the vocabulary of morality, aesthetics, and economics is a remarkable case of metaphorical extension.
The word enters English in the early fourteenth century from Old French 'austere,' which derives from Latin 'austērus' (dry, harsh, sour, tart), borrowed from Greek 'austēros' (αὐστηρός), meaning 'bitter,' 'rough,' or 'making the tongue dry.' The Greek adjective comes from 'auein' (αὔειν, to dry), and its primary application was to describe the astringent quality of certain foods and drinks — the mouth-drying effect of unripe grapes, tart apples, or heavily tannic wine.
The metaphorical extension from physical dryness to character was already present in Greek. An austere person, by this metaphor, was one from whom all softness, sweetness, and indulgence had been dried out, leaving only the hard, essential structure. The extension was natural enough that it occurred independently in the Latin and Greek literary traditions: Aristotle used 'austēros' to describe a person of strict self-discipline, and Cicero used 'austērus' similarly in Latin.
Semantic Evolution
In English, 'austere' developed three overlapping applications. The personal sense — a stern, strict, self-denying character — appears first and remains strong. An austere monk, an austere teacher, an austere upbringing — these describe human environments stripped of warmth, comfort, and indulgence. The aesthetic sense — simple, unornamented, stripped to essentials — developed alongside it and became central to discussions of architecture, design, and art. Austere buildings (think Brutalist concrete), austere prose (think Hemingway), austere compositions (think late Beethoven quartets) all share the quality of having been reduced to structural necessities.
The economic sense — 'austerity' as a policy of reduced government spending and public belt-tightening — became globally prominent during the European debt crisis of the 2010s. 'Austerity measures,' 'austerity budgets,' and 'austerity politics' entered the daily vocabulary of millions of citizens experiencing cuts to public services, wages, and benefits. The etymological connection to drying out is apt: austerity dries up the flow of money and services, leaving institutions and individuals parched.
The wine-tasting origin remains visible in the specialized term 'austerity' used by sommeliers and wine critics. An 'austere' wine is one with high tannins and low fruit — harsh and drying rather than soft and fruity. Young Barolo and Bordeaux wines are often described as austere, with the expectation that aging will soften them. The tasting term preserves the word's original Greek meaning with perfect fidelity across more than two thousand years.
Latin Roots
The Latin unrelated word 'auster' (the south wind) has sometimes been confused with the source of 'austere,' but they have different origins. 'Australia' (southern land) comes from 'auster' (south); 'austere' comes from Greek 'auein' (to dry). The confusion is understandable — hot southern winds do dry things out — but the etymological connection is coincidental rather than real.