The spelling of the name "Cristena" is based on the pronunciation of its syllables. The first syllable "Cri" is pronounced with a /k/ sound followed by a short /i/ vowel sound. The second syllable "stena" is pronounced with a /st/ consonant blend followed by a long /e/ vowel sound, and then ending with a schwa /ə/ sound. Therefore, the correct spelling of the name "Cristena" should be written with a "C" and an "e" in place of the more common "i" and "y" respectively.