Etymologically
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acumen

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Pronunciation

  • IPA (Classical): [aˈkuː.mɛn][1]
  • IPA (Ecclesiastical): [aˈkuː.men][1]

Forms

acūmen n (genitive acūminis); third declension[1]

Etymology

It is from Latin acuō (“to sharpen”) + -men.[2][1] Acuō is related to acus “needle”.[1] Douglas Q. Adams has compared it with Tocharian B akwam, which he derives from Proto-Indo-European *h₂eḱ-u-mn-.[1]

Earliest recorded meaning

Ennius, in the Annals, has the point of iron whistling as shields resound.[3] Köbler dates Ennius 204–169 BC.[4]

Semantic evolution

It meant a sharp point, of a weapon, a stylus or the nose of a dying man in Lucretius, and the sting of insects.[2][3] Döderlein distinguishes acumen, a point made for piercing, from acies, a sharp edge made for cutting.[5] Pliny uses it in the plural of sharpness of flavour.[2]

Its most lasting sense was mental sharpness, with or without ingenii, as in Cicero, and in the plural clever tricks.[2] In music theory it was the high pitch of a sound, opposed to depth.[6] Medieval writers also used it of urgency, subtlety and a summit.[4] English acumen “keen insight” was borrowed in the 1530s.[7]

Timeline

  • 204–169 BC – Ennius uses it of the point of a weapon.[3][4]
  • 96–55 BC – Lucretius uses it of the tip of the nose.[2][4]
  • 81–43 BC – Cicero uses it of mental acuteness.[2][4]
  • 1530s – English acumen is recorded.[7]

Meanings

Noun

  1. A sharp point, tip.[2][1]
  2. A sting of an insect.[2]
  3. (plural) Sharpness of flavour.[2]
  4. Mental acuteness, shrewdness, (plural) clever tricks.[2]
  5. (music) High pitch.[6]

Word family

  • acūminō

Usage notes

Döderlein contrasts it with acies “edge”: the acies mentis sifts what is confused, the acumen penetrates what is hidden.[5]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
  6. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  7. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com