Χ χ

Χ χ, χεῖ (q.v.), τό, indecl., twenty-second letter of the Gr. alphabet, Pl. Cra. 414b, Ti. 36b. As numeral, χ/ = 600, x' = 600,000: but in Inscrr., X stands for χίλιοι,αι, α, = 1000.