The spelling of the word "Jevstachi" can be explained using IPA phonetic transcription. The first sound is a voiced velar fricative /ɣ/. The second letter is a schwa sound /ə/. The third and fourth letters are pronounced as two separate syllables, with a voiced dental fricative /ð/ followed by a voiceless alveolar stop /t/. The fifth letter is an open-mid back rounded vowel /ɔ/. The sixth and seventh letters are pronounced as a single syllable, with a voiceless palato-alveolar affricate /tʃ/ followed by a voiced alveolar fricative /ʒ/. Finally, the word ends with a voiced palatal approximant /j/.