Kryos
From Simon Online
Kryos grece frigus per .y.
Apparatus:
Kryos AC ef | Krysos B
frigus AC ef | fagus B
Translation:
Kryos is Greek for Latin frigus {"coldness, chill"}, it must be spelt with the letter 'y'.
Commentary:
Greek κρύος /krýos/ means "icy cold, frost".