The word "tabic" can be a bit confusing when it comes to spelling. In IPA phonetic transcription, it is spelled /tæbɪk/. The "t" is pronounced with a short "a" sound followed by a "b." The "i" is pronounced with a short "i" sound and the "c" is pronounced with a hard "k" sound. This word is often seen in medical terminology and refers to a type of tissue degeneration.
Tabetic.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.