sextile, a. [F. sextil, fr. L. sextus the sixth, from sex six. See Six.].
Measured by sixty degrees; fixed or indicated by a distance of sixty degrees. Glanvill. [1913 Webster]
sextile, n. [Cf. F. aspect sextil.].
The aspect or position of two planets when distant from each other sixty degrees, or two signs. This position is marked thus: <8star/. Hutton. [1913 Webster]