The term 'RAPIER COUSIN' is a combination of two words, 'RAPIER' and 'COUSIN'. RAPIER is a type of sword that was popular during the 16th and 17th centuries. It is characterized by its long, thin blade and its ability to thrust and parry. The word 'COUSIN' refers to a close relative, usually a first or second COUSIN. The crossword solution for this term is 'Epee', which is a modern version of the RAPIER. Epee is a fencing weapon with a triangular blade and a guard to protect the hand. It is used in the sport of fencing and is the heaviest of the three weapons used in the sport.