Sothic

So·thic  (sthk, sthk)

adj.

1. Of, relating to, or deriving from the name of Sothis.

2. Being the ancient Egyptian calendar year, consisting of 365 ¹/₄ days.

3. Being a cycle consisting of 1,460 years of 365 days in the ancient Egyptian calendar.

---

[From Greek Sthis, the star Sirius; see Sothis.]

---

Sothic [ˈsəʊθɪk ˈsɒθ-]

adj

(Astronomy) relating to the star Sirius or to the rising of this star

[from Greek Sōthis, from Egyptian, name of Sirius]