The term 'Butterfly Relative' can be broken down into three crossword solutions: CRAWL (5 letters), MOTH (4 letters), and BREASTSTROKE (12 letters). CRAWL is a verb meaning to move slowly on hands and knees or by dragging the body along the ground. MOTH is an insect related to butterflies, often characterized by its feathery antennae and nocturnal habits. Finally, BREASTSTROKE is a swimming stroke in which the swimmer lies face down in the water and moves their arms and legs in a circular motion.