נְחִישׁוּת (nekhishut) — determination, resoluteness

Etymology

The story of נְחִישׁוּת is the story of a grammatical error that became a word. In the Bible, נְחוּשָׁה is a variant noun form meaning "copper" or "bronze," appearing in expressions such as "your skies like iron and your earth like נְחֻשָׁה" (Leviticus 26:19) — a divine threat to make the land hard and barren. The phrase מֶצַח נְחוּשָׁה ("forehead of bronze," Isaiah 48:4) is a construct noun meaning "a forehead of bronze/copper," used to describe stubbornness. Similarly, "הֲבְּשָׂרִי נָחוּשׁ" (Job 6:12) is almost certainly a construct too: "Is my flesh copper?" — not an adjective but a noun used predicatively.

The problem arose because נְחוּשָׁה looks exactly like the feminine form of an adjective נָחוּשׁ. Once the construct-noun interpretation was forgotten, speakers began treating נָחוּשׁ / נְחוּשָׁה as genuine adjectives meaning "hard, unyielding, determined." In October 1941, a reader writing to Haaretz under the initials M.D. complained about the phrase הַחְלָטָתִי הַנְּחוּשָׁה ("my resolute decision") — noting that הַחְלָטָה is feminine, so a genuine adjective meaning "resolute" would be correct, but נְחוּשָׁה in the Bible is actually a noun, not an adjective. His objection was technically right but a week too late: a response cited Job 6:12, and in any case the usage was already so widespread that correcting it was impossible.

The earliest clear use of נְחוּשָׁה as a free adjective appears in Ben-Yehuda's newspaper HaOr (May 1910), in a story by Moshe Bar-Nassim: "the most resolute (נְחוּשִׁים) hearts." By 1941, when the Haaretz debate took place, נָחוּשׁ as an adjective was fully established. Four years later, in December 1945, the abstract noun נְחִישׁוּת (the quality of being determined) appeared for the first time in HaHaMizrach newspaper, placed in quotation marks to signal its novelty, in a passage about Russia's foreign policy: "with energy, initiative, and 'נְחִישׁוּת,' with boldness and surprise." The quotation marks reflect its status as a fresh coinage at the time.

Key Quotes

"מִדַּעְתִּי כִּי קָשֶׁה אָתָּה וְגִיד בַּרְזֶל עָרְפֶּךָ וּמִצְחֲךָ נְחוּשָׁה" — ישעיהו מ״ח, ד׳

"הֲכֹחַ אֲבָנִים כֹּחִי, אִם בְּשָׂרִי נָחוּשׁ" — איוב ו׳, י״ב

"ובקול מרעיש גם את הלבבות היותר נחושים" — משה בר-נסים, האור, מאי 1910

"במרץ, ביזמה, ב'נחישות', מתוך העזה והפתעה" — כ״ס, הד המזרח, דצמבר 1945

Timeline

• Biblical period: נְחוּשָׁה used as a noun meaning copper/bronze; מֶצַח נְחוּשָׁה is a construct phrase
• 11th century: Rashi and later commentators interpret מֶצַח נְחוּשָׁה as a simile for stubbornness
• October 1941: Reader M.D. writes to Haaretz objecting to הַחְלָטָתִי הַנְּחוּשָׁה as grammatically incorrect
• May 1910: Earliest attested use of נְחוּשִׁים as a free adjective (HaOr)
• December 1945: First appearance of the abstract noun נְחִישׁוּת in HaHaMizrach
• Modern: נָחוּשׁ as adjective and נְחִישׁוּת as noun fully standard in Hebrew

Related Words

• נְחוּשָׁה / נְחֹשֶׁת — copper, bronze (biblical nouns; ultimate source of the form)
• מֶצַח נְחוּשָׁה — brazen forehead (idiom for lying shamelessly)
• עַזּוּת מֵצַח — impudence (Talmudic idiom with similar metaphor)
• נָחוּשׁ — resolute, determined (adjective, developed 19th–20th century)