Κκ

Κκ, [full] κάππα, τό, indecl., eleventh (later tenth) letter in Gr. alphabet: as numeral κ = 20, but [num] κ' = 20,000. The numeral κά (21) is perh. used as one syll. in a metrical (?) Inscr., IG12(7).296 ([place name] Minoa),

A like ζήσασα ἔτη έ, at the end of a hexam. (?), CIG3025 ([place name] Lydia).