BOLD RULER%2C TO SECRETARIAT' The crossword solution for the term 'BOLD RULER, TO SECRETARIAT' is BOLD underline-link hover:text-barberry-yellow'>SIRE, which is a 4 letter word. The term 'BOLD underline-link hover:text-barberry-yellow'>SIRE' is used TO refer TO the father of an animal, particularly horses. In this case, it is referring TO the father of Secretariat, the famous racehorse who won the Triple Crown in 1973. BOLD RULER was the BOLD underline-link hover:text-barberry-yellow'>SIRE of Secretariat, meaning he was the father of the legendary horse.