(Ἄσυχις), a king of Egypt, who, according to the account in Herodotus (2.136), succeeded Mycerinus (about B. C. 1012 according to Larcher's calculation), and built the propylaea on the east side of the temple of Hephaestus which had been begun by Menes, and also a pyramid of brick. Herodotus likewise mentions some laws of his for the regulation of money transactions.
[C.P.M]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890