Mistreat comes from the Latin prefix mis‑ meaning “wrongly” combined with the Old French verb traiter, itself from Latin tractare “to handle”. The compound entered English in the late 16th century, originally meaning “to handle or deal with badly”. Today it denotes cruelty or neglect toward a person or thing.
“Disaster” comes from the Italian disastro — a compound of dis- (bad, against) and astro (star, from Latin astrum). Literally, a “bad star” — reflecting the Renaissance belief that the positions of stars governed human fate. An unfavorable stellar alignment was a disaster: celestial catastrophe written in the sky before it happened on earth.
“Calculate” comes from Latin calculare, itself from calculus meaning “small stone” or “pebble.” Romans used pebbles on counting boards to perform arithmetic, and the act of moving stones became the word for computation. The same Latin word gave mathematicians the term “calculus” (Newton’s system of infinitesimal calculation) and geologists “calcium” (from calx, limestone — the parent of calculus).
“Candidate” comes from Latin candidatus, meaning “clothed in white.” In ancient Rome, those seeking public office wore a toga candida — a toga whitened with chalk — to signal their openness and purity to voters. The gleaming white garment was a visual appeal for trust. The same Latin root gives us “candid” (frank, white = pure), “candor,” “candle,” and “incandescent.”
“Panic” comes from Greek Panikos (of Pan), named for Pan — the Greek god of the wilderness, flocks, and rustic music. Pan was believed to cause sudden, irrational terror in travellers who disturbed him in lonely places, particularly at noon when he was thought to sleep. The adjective panikos (of Pan) became the noun describing the sudden, uncontrollable fear he caused.
“Dunce” comes from the name of John Duns Scotus (c. 1265–1308), one of the most brilliant philosophers of the Middle Ages. Renaissance humanists mocked his followers — the “Dunses” or “Dunsmen” — as obstinate pedants clinging to an outdated system. The name of a philosopher celebrated for intellectual subtlety became, through this reversal of reputation, a word for a stupid person.
“Hazard” comes from the Arabic az-zahr (the dice — literally “the flower,” from the markings on dice). The word entered Spanish as azar (chance, accident) and then Old French as hasard — a dice game that Crusaders learned in the Middle East and brought back to Europe. The dice game became a general term for chance, and chance became a term for risk.
“Companion” comes from Late Latin companio — literally “one who shares bread” — from com- (together, with) + panis (bread). In a world where sharing a meal was a bond of loyalty and trust, the word for a trusted fellow was built from the act of breaking bread together. The same “panis” root gives us company, accompany, pantry, and the French surname “Dupain” (of the bread).
The word “disaster” comes from the Italian disastro, which literally means “bad star.” It combines the prefix dis- (bad, against) with astro (star), from Greek aster. In the age of astrology, a disaster was an event caused by an unfavorable position of the stars — a calamity written in the heavens.
The word “nice” has undergone one of the most dramatic semantic shifts in the English language. It originally meant “foolish” or “ignorant” in the 13th century, derived from Latin nescius meaning “ignorant.” Over seven centuries, its meaning shifted through “lascivious,” “extravagant,” “fastidious,” and “precise” before arriving at today’s sense of “pleasant” or “kind.”