"ckac" is not a word in any language and does not follow any standard spelling rules. However, if we were to use IPA phonetic transcription to represent this word, it would be transcribed as /k-k-æ-k/. The first "k" is followed by a hyphen to indicate a release of air, and the same goes for the second "k". The "æ" represents the short "a" sound and the final "k" is represented normally without any hyphens.