It’s not exactly a new word to me. But I’m pretty sure I'd never actually used the word “pre-determine” in a sentence until my pastor referred to it recently -- and in a way that turned on a bright light in my noggin.
To pre-determine is to make a decision in advance. That describes perfectly what it means to budget. You get your paycheck, and before you do anything with it, you pre-determine where every dollar will go. You give each dollar a job to do -- in advance. You pre-determine!