Strabo Geography 8.5.7

[7] Since some critics write ¹ Lacedaemon “Ketoessan” and others “Kaietaessan,” the question is asked, how should we interpret “Ketoessa,” whether as derived from “Kete,” ² or as meaning “large,” ³ which seems to be more plausible. And as for “Kaietaessan,” some interpret it as meaning “Kalaminthode,” ⁴ whereas others say that the clefts caused by earthquakes are called “Kaietoi,” and that from “Kaietoi” is derived “Kaietas,” the word among the Lacedaemonians for their “prison,” which is a sort of cavern. But some prefer to call such cavernous places “Kooi,” and whence, they add, comes the expression ^{5 6} Laconia is subject to earthquakes, and in fact some writers record that certain peaks of Taÿgetus have been broken away. And there are quarries of very costly marble—the old quarries of Taenarian marble on Taenarum; and recently some men have opened a large quarry in Taÿgetus, being supported in their undertaking by the extravagance of the Romans.