The term 'Jet-Black, Poetically' can be summed up by the crossword solution 'EBON, ' which is a four-letter word. EBON is an adjective that means 'deeply black, ' and is often used to describe something that is dark in color or tone. It is derived from the Latin word 'eburneus, ' which means 'ivory-like.' The term 'Jet-Black, Poetically' is often used to describe something that is very dark and intense, and is often used in poetry or literature to evoke a sense of mystery or darkness.