The term 'HALF Hexadeca' can be broken down into two parts: 'HALF' and 'Hexadeca'. The word 'HALF' means one-HALF or a portion equal to HALF of a whole. The word 'Hexadeca' is derived from the Greek word for sixteen, and it refers to a group of sixteen elements or objects. The crossword solution for this term is 'Octo', which is a Latin word meaning eight. Therefore, the term 'HALF Hexadeca' can be interpreted as a group of eight elements or objects, which is HALF of the original sixteen.