The D to T Sound Shift in Modern English

graham noticed a shift from the original indo european language to germanic languages. This d to t sound shift is quite obvious, and it's easy to see. Think about s in past tense, like walkt, which is usually pronounced with a t sound. Over time, the old latin word dellum evolved into the word bellum - meaning war or conflict. The word bellam is found in many modern english word like antibelum,. It also appears in belicose and belligerent and even rebellion.