As nouns the difference between dies and daies

is that dies is plural of lang=en when used in the sense of a pattern while daies is plural of lang=en.

As a verb dies

is third-person singular of die.

As a proper noun Dies

is one of the Protogenoi, the Protogenos personification of day. She is the daughter of fellow Protogenoi, Nox/Nyx (Night) and Erebus (Darkness), and sister-wife of Aether. She is the Roman counterpart of Hemera.