英和和英

語源 1

Learned borrowing from Ancient Greek κάππα (káppa), ultimately from Proto-Semitic *kapp- (“palm, hand”). Doublet of kaph.

名詞

kappa (countable and uncountable, plural kappas)

1. The tenth letter of the Greek alphabet.
2. (finance) A measurement of the sensitivity of the value of an option to changes in the implied volatility of the price of the underlying asset.

同意語

• (measure of derivative price sensitivity): tau, vega

上位語

• (measure of derivative price sensitivity): Greeks (includes list of coordinate terms)

派生語

参考

• (Greek-script letter names) alpha, beta, gamma, delta, epsilon, zeta, eta, theta, iota, kappa, lambda, mu, nu, xi, omicron, pi, rho, sigma, tau, upsilon, phi, chi, psi, omega

語源 2

From Japanese 河童 (kappa, “water imp”).

名詞

kappa (plural kappas)

1. (Japanese mythology) A tortoise-like demon or imp.
   • 2013, Laura VanArendonk Baugh, Kitsune-Mochi: Kitsune Tales #2‎, page 94:

     It was not quite possible for a kappa to go pale, but this one managed, shrinking partly into its shell.