英语词汇secant的起源、历史背景-英语词源词典

词汇	secant
词源	secant n. one of the fundamental functions of trigonometry, 1590s, from Latin secantem (nominative secans) "a cutting," present participle of secare "to cut" (from PIE root sek- "to cut"). First used by Danish mathematician Thomas Fincke in "Geometria Rotundi" (1583). Related: Secancy ("state of being a secant"). Entries linking to secant* *sek- Proto-Indo-European root meaning "to cut." It forms all or part of: bisect; dissect; hacksaw; insect; intersect; resect; saw (n.1) "cutting tool;" Saxon; scythe; secant; secateurs; sect; section; sector; sedge; segment; skin; skinflint; skinny; transect. It is the hypothetical source of/evidence for its existence is provided by: Hittite shakk- "to know, pay attention to;" Latin secare "to cut," sectio "a cutting, cutting off, division;" Old Church Slavonic seko, sešti "to cut," sečivo "ax, hatchet," Russian seč' "to cut to pieces;" Lithuanian įsėkti "to engrave, carve;" Albanian šate "mattock;" Old Saxon segasna, Old English sigðe "scythe;" Old English secg "sword," seax "knife, short sword;" Old Irish doescim "I cut." cosecant n. in trigonometry, 1706, from co, short for complement, + secant. updated on March 19, 2022
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secant n.