The Assibilation Process in Western European Languages

In latin, kentum became c e in t in french and was pronounced son. The same sound shift that had occurred within some of those early inda european tribes happened here. After the norman conquest of england in ten 66, which was after these sound changes had been completed, we got the forced introduction of many french words. In modern english when the k sound appears before the front vowes, e and i, we get words like cell or centre.