The spelling of the word "amnitis" can be explained using the International Phonetic Alphabet (IPA). Phonetically, "amnitis" is pronounced as /æmˈnaɪtɪs/. The first syllable is pronounced as "am" with a short "a" sound, followed by the "n" sound. The second syllable is pronounced as "nye" with a long "i" sound, followed by the "tis" with a short "i" sound. The spelling of the word remains the same, however its phonetic pronunciation may vary based on regional dialects.
Amniotitis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.