The term 'Muslim Title of Honour' is composed of two crossword solutions, 'AGA' and 'PIR'. 'AGA' is an honorific title used in Turkey, Iran, and other parts of the Middle East. It is derived from the Turkish word 'Agha', which means 'LORD' or 'MASTER'. 'PIR' is an honorific title used in some Islamic countries, such as Afghanistan and Pakistan. It is derived from the Persian word 'Pir', which means 'ELDER' or 'SAINT'. Together, these two titles form a Muslim Title of Honour, which is a sign of respect and reverence for a person of high status.