subrogate /subˈrō-gāt or -rə-/

1. To substitute
2. To put in place of another party as successor to that party's rights (law)

subrogāˈtion noun

• firmness
• firmnesses
• firms
• firm up
• firmware
• firmwares
• firn
• firns
• firrier
• firriest
• firring
• firry
• firs
• first
• first aid
• first-aider
• first-aiders
• first and last
• first-attack
• first-begotten
• first blood
• first blush
• First Book of Discipline
• first-born
• first cab off the rank