ψυχρου κρουνος

Pausanias, Desc. of Greece, Laconia, 24. 2:

εστι δε και υδατος ψυχρου κρουνος εκβαλλων εκ πετρας

ψυχρου (ψυχρος, -α, -ον): cold, chill κρουνος, -ou (m): spring, well-head.

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There is also a spring of cold water flowing out from the rocks.