Old term of address is a way to refer to someone in a respectful manner. The crossword solutions for this term are SIRE (4 letters), Sirrah (5 letters), and Sirrah (6 letters). SIRE is an archaic term used to refer to a man of high social rank, such as a king or lord. Sirrah is a more informal version of SIRE, and is used to address someone in a respectful but less formal manner. Sirrahh is a more emphatic version of sirrah, and is used to express surprise or indignation.