The term 'fill fully' can be interpreted in two ways, as indicated by the crossword solutions of SATE and CRAM. SATE is a verb meaning to satisfy or appease someone or something, usually with food. It is derived from the Latin word satis, meaning enough. On the other hand, CRAM is a verb meaning to fill something to capacity or to stuff something with an excessive amount of material. This term is derived from the Middle English word crammen, meaning to press together. Therefore, the term 'fill fully' can be interpreted as either satisfying someone or something to the point of contentment, or filling something to capacity with an excessive amount of material.