The spelling of the word "exprobated" is based on its phonetic pronunciation. IPA transcription for this word is /ɛksˈprəʊbeɪtɪd/. The first syllable "ex" is pronounced as "eks" with the short e sound. The second syllable "pro" is pronounced as "pro" with the schwa sound. The third syllable "bat" is pronounced as "bayt" with the long a sound. The fourth syllable "ed" is pronounced as "Əd" with the schwa sound. Therefore, the spelling of the word reflects its phonetic sounds.